ICONO Invited Speakers
ICONO Plenary Speakers
PLENARY: “Photonic crystal fibers: Enabling new science”, Philip Russell, Max Planck Institute for the Science of Light, Germany
Abstract: The past 15 years have seen the emergence of glass fibers with intricate transverse microstructures, often with nanoscale features. Their ability to guide and manipulate light in new ways has led to many novel applications. Examples include generation of octave-spanning supercontinua in silica-air photonic crystal fibre (PCF), giant optomechanical nonlinearities two parallel nanoscale membranes supported within a capillary fibre, all-optical modulation of light by GHz acoustic resonances tightly confined in micron-sized glass cores, excitation of orbital angular momentum states in twisted solid-core photonic crystal fibre (PCF) and optothermal trapping of particles in hollow core PCF.
Hollow core PCF also offers unique opportunities for studying ultrafast pulse dynamics in gases: pressure-tunable dispersion, metre-long diffraction-free path-lengths, very high optical damage thresholds, a small core offering near single-mode operation and a Kerr nonlinearity that (at high pressure) can rival that of silica glass. When a noble gas is used, very low group velocity dispersion and the absence of Raman scattering allow almost perfect self-compression of high order solitons to few-cycle pulses, resulting in the efficient generation of ultraviolet (UV) dispersive waves (or Čerenkov radiation) whose wavelength is pressure- and energy-tunable from the vacuum UV out to the visible. At the temporal focus the intensity can be as high as 1014 W/cm2, exceeding the ionisation threshold of the gas, and permitting for the first time the observation of a soliton self-frequency blue-shift. When Raman-active gases are used, frequency combs spanning many octaves can be generated, and studies of dynamic self-similarity are made possible by using a HC-PCF in which only pump and first Stokes signals are guided. It seems probable that over the next years photonic crystal fibres will continue to yield many exciting new results of fundamental scientific interest, some with considerable commercial potential.
PLENARY: “Novosibirsk free electron laser as a tunable source of high-power radiation: Facility development and application highlights”, Gennadiy Kulipanov, Budker Inst. of Nuclear Physics, Russia
Abstract: Novosibirsk free electron laser (FEL) facility has three FELs to generate radiation spanning a wavelength range between 5 and 240 micrometer. The accelerator part consists of a four-track energy recovery linac with maximum electron energy of 40 MeV. By the end of 2012 we have commissioned completely the accelerator system. Two FELs are already operating in mid- and far-infrared (terahertz) spectral ranges emerging monochromatic radiation in the range from 50 to 240 μm. Maximum average power of radiation reached at the facility at the wavelength of 140 μm was 500 W at a 100-ps pulse repetition rate of 11.2 MHz. The peak power reached 1 MW. Impressive experiments in physics, chemistry, biology, material science and other fields have been performed or are in progress at six user stations, which are well-equipped with commercially available and home-made instrumentation. Users from more than 15 research institutes, universities and companies work at the facility. Description of most interesting experiments, including ultrasoft THz ablation of biological molecules, study of impact of THz radiation on genetics materials, biological cell systems and microorganisms, surface plasmon spectroscopy, time-resolved superfast THz time domain spectroscopy, flame diagnostics using THz radiation, is presented.
ICONO Keynote and Invited Speakers
1. Fundamentals of Nonlinear Optics and Novel Phenomena
KEYNOTE: “Quantum coherence effects from quantum thermodynamics to slow light and fast CARS”, Marlan Scully, Texas A&M Univ., USA
Abstract: Counterintuitive effects such as amplification without noise, lasing without inversion, and slow light are examples of quantum coherence. Further work involving quantum coherence effects has lead to improvements in laser spectroscopy which allow us to “instantaneously” detect anthrax type endospores [Science, 316, 265 (2007); Proc. Nat. Acad. Sci., 105, 422 (2008)]. In the latter example, marker molecules in the endospore are put into maximal oscillation which is detected by scattering laser light off the coherently oscillating molecules. This is called coherent Raman scattering and is a type of Dicke superradiance. Finally, quantum coherence effects in quanutm thermodynamics and biology will be discussed. The preceding topics were tempered and advanced in the heat of vigorous debate.
He has been elected to the: National Academy of Sciences, American Academy of Arts and Sciences, Academia Europaea, and Max Planck Society; has numerous awards including the: APS Schawlow prize, OSA Townes Award, IEEE Quantum Electronics Award, Franklin Institute's Elliott Cresson Medal, OSA Lomb Medal, and Humboldt Senior Faculty Prize. More recently he was named Harvard Loeb Lecturer, received an honorary doctorate from Universität Ulm, and was awarded the OSA/DPG Hebert Walther Award.
INVITED: “Nonlinear processes in air”, Richard Miles, Princeton Univ., USA
INVITED: “Bright fibers: special concepts and technologies for light generation in optical fibers”, Hartmut Bartelt, Friedrich-Schiller-Universität Jena, Germany
INVITED: “Nonlinear (micro-) spectroscopy with tailored pulses”, Marcus Motzkus, Ruprechts-Karls Univ. Heidelberg, Germany
INVITED: “Ultra-broadband optical parametric amplifiers: towards single-cycle CEP-controlled light pulses”, Giulio Cerullo, Politecnico di Milano, Italy
INVITED: “Light in structured nonlinear photonic materials”, Cornelia Denz, Westfälische Wilhelms-Univ. Münster, Germany
INVITED: “Accelerate rogue solitons”, Gunter Steinmeyer, Max-Born-Inst., Germany
2. Nonlinear Space-Time Dynamics, Instabilities, and Patterns
KEYNOTE: “Nonlinear effects in subwavelength structures: from metamaterials to nanoplasmonics”, Yuri Kivshar, The Australian National Univ., Australia
Abstract: This talk will discuss recent advances in nonlinear physics of novel metamaterial systems where structuring at the subwavelength scale may bring novel effects, including nonlinear tunability of metamaterials, oscillons and kinks in lattices of nonlinear nanoparticles, plasmonic cloaking and superscattering, and plasmon solitons.
INVITED: “Subcycle field waveforms from fissioning soliton breathers”, Alexei Zheltikov, Lomonosov Moscow State Univ., Russia
INVITED: “Spacetime distortions in nonlinear Kerr media: from Hawking radiation to the dynamical Casimir effect”, Daniel Faccio, Heriot-Watt Univ., UK
INVITED: “Optical billiard with pulsed laser beams”, Anatoly Sukhorukov, Lomonosov Moscow State Univ., Russia
INVITED: “Ultrashort light sources from laser matter interaction”, Stefan Skupin, Max-Planck Inst. for the Physics of Complex Systems, Germany
INVITED: “Quantum walks of photon pairs in coupled nonlinear waveguides”, Andrey Sukhorukov, Australian Natl Univ., Australia
3. Quantum and Atom Optics
KEYNOTE: “Quantum state engineering with large atomic objects”, Eugene Polzik, Niels Bohr Inst., Denmark
Abstract: Recent progress with generation and applications of quantum entangled states in macroscopic systems will be reviewed. Spin polarized atomic gas in a magnetic field behaves as a quantum harmonic oscillator in the ground state even at room temperature. Entanglement generated by dissipation and a steady entangled state with an arbitrary long life time has been demonstrated for such oscillators. Entanglement between two atomic spin ensembles allowed for demonstration of a magnetic field measurement in which suppression of the quantum measurement back action and quantum
projection noise has led to a record sensitivity at the sub-femtoTesla level. Recently quantum teleportation of atomic spin states between two spin ensembles has been demonstrated. These methods and ideas are now being transferred to mechanical and electrical oscillators paving the road to quantum state transfer between disparate macroscopic quantum systems.
INVITED: “Quantum limits of optical super-resolution and a priori information”, Mikhail Kolobov, Univ. de Lille 1, France
INVITED: “Quasi-two-dimensional atomic Fermi gas with tunable interactions”, Andrei Turlapov, Inst. of Applied Physics, Russia
INVITED: “Quantum Computation in an array of trapped Rydberg Atoms”, Mark Saffman, Univ. of Wiscosin-Madison, USA
INVITED: “Few-photon spectroscopy of a trapped ion through sensitive detection of photon recoil”, Piet Schmidt, Physikalisch-Technische Bundesanstalt, Germany
INVITED: “Deep laser cooling of Thulium atoms”, Nikolai Kolachevsky, P.N.Lebedev Physical Inst., Russia
INVITED: “Long-distance quantum networks built from spin registers in diamond”, Ronald Hanson, Delft Univ. of Technology, The Netherlands
INVITED: “High-efficiency object identification using multi-dimensional correlated orbital angular momentum (OAM) states”, Alexander Sergienko, Univ. of Boston, USA
INVITED: “Ultra-cooled magnesium atoms for an optical frequency standard: state of the art and future trends”, Andrey Goncharov, Inst. of Laser Physics, Russia
INVITED: “Quantum simulator using atoms and photons in a hollow core fibers”, Leong-Chuan Kwek, Natl Univ. of Singapore, Singapore
INVITED: “Long coherence time and precision measurement of atomic interactions in a Bose-Einstein condensate”, Andrei Sidorov, Swinburne Univ., Australia
INVITED: “Observing a large optical phase shift from a single trapped atomic ion”, Andreas Jechow, Univ. of Potsdam, Germany
INVITED: “Quantum electrodynamics of atoms and molecules in nanoenvironment”, Vasily Klimov, Lebedev Physical Inst., Russia
4. Quantum Physics, Information, and Technologies
KEYNOTE: “From nonlinear optics with single photons to nanoscale quantum sensors: new frontiers of optical science”, Mikhail Lukin, Harvard Univ., USA
Abstract: We will discuss recent developments involving a new scientific interface between quantum optics, many body physics, nanoscience and quantum information science. Specific examples include the use of quantum optical techniques for manipulation of individual spins using
atom-like impurities in diamond and for controlling individual optical photons using strongly interacting atoms. Novel applications of these techniques ranging from quantum networks to strongly interacting photonic systems and
nanoscale sensing in biology will be discussed.
INVITED: “A giant optical Schrödinger cat”, Alexander Lvovsky, Univ. of Calgary, Canada
INVITED: “Entangling distant microwave resonators with local optical certification”, Paolo Tombesi, Univ. di Camerino, Italy
INVITED: “Quantum simulation via 3-dimensional quantum photonics”, Paolo Mataloni, Univ. di Roma “La Sapienza”, Italy
INVITED: “Single qubit laser – a source of non-classical light for quantum information applications”, Sergei Kilin, Stepanov Inst. of Physics, Belarus
INVITED: “Measurement of photon statistics with live photoreceptor cells”, Leonid Krivitsky, Data Storage Inst., Singapore
INVITED: “Majorana fermions in atomic wire networks and topologically protected quantum computing”, Mikhail Baranov, Univ. Innsbruck, Austria
INVITED: “Coupling cold atoms to nanophotonics: a novel platform for quantum nonlinear optics”, Darrick Chang, Inst. de Ciències Fotòniques, Spain
INVITED: “Nonlinear processes responsible for mid-infrared and blue light generation in alkali vapours”, Alexander Akulshin, Swinburne Univ. of Technology, Australia
INVITED: “Information transmission capacities of hybrid communication channels”, Alexander Holevo, Steklov Mathematical Inst., Russia
5. High-Field Physics and Attoscience
KEYNOTE: “Atto-science: what we learn by converting many photons into one”, Paul Corkum, Univ. of Ottawa and NRC of Canada, Canada
Abstract: Attosecond pulse generation can be understood via quantum trajectories of an ionizing electron. A trajectory begins from a bound state and returns to the same state after an excursion in the continuum. Quantum trajectories, such as these, map onto an interferometer – an electron interferometer created by light [1]. This mapping makes it obvious that weak fields perturb attosecond pulse generation and thereby construct perturbative nonlinear optics on top of the non-perturbative process [2]. I will show how this allows us develop an all optical method to fully characterize the space-time structure of attosecond pulses [3].
A (sheared) interferometer can measure most properties of light so we should be able to measure most properties of the electron [4]. I will show how high harmonic or attosecond spectroscopy can image molecular orbitals [5] or follow chemical dynamics of small molecules [4, 5].
[1] P. B. Corkum, “Recollision Physics”, Physics Today, 64, 36, (2011).
[2] J. B. Bertrand et al, Phys. Rev. Lett, 106, 023001 (2011).
[3] K. T. Kim et al, to be published in Nature Physics
[4] J. Itatani et al. Nature 432, 867 (2004).
[5] H. J. Wörner et al. Nature, 466, 604, (2010).
[6] H. J. Wörner et al. Science, 334, 208 (2011).
Dr. Corkum's research launched attosecond science. After studying the interaction of intense laser radiation with atoms and molecules, he and his group proposed a method for producing and measuring attosecond pulses of light. Using this revolutionary technology, they have been able to “see” electrons, image molecular orbitals, and “watch” electrons move in a molecule as a chemical reaction takes place.
Dr. Corkum is a fellow of the Royal Societies of Canada (1995), Royal Society (of London) (2005), the Institute of Physics (2002), American Physical Society (2007) and the Optical Society of America (2009). He is a foreign member of the US National Academy of Sciences (2009) and the Austrian Academy of science (2012). Dr. Corkum was elected to the Order-of-Canada in 2007 – Canada’s highest civilian honor. Within Canada Dr. Corkum has received the Gold Medal for Lifetime Achievement in Physics from the Canadian Association of Physicists (1996), the Golden Jubilee Medal of Her Majesty Queen Elizabeth II (2003), the Tory Medal of the Royal Society of Canada (2003); the Killam Prize for Physical Sciences (2006); the Polyani prize (2007) and the Herzberg prize (2009).
Internationally Dr. Corkum was awarded the Einstein Award of the Society for Optical and Quantum Electronics (1999), the Charles Townes Award of the Optical Society of America (2005); the Quantum Electronics Award of the Institute of Electrical and Electronics Engineers (IEEE, 2005), the Arthur Schawlow Prize for Quantum Electronics from the American Physical Society (2006) and the Zewail Prize from the American Chemical Society (2010).
INVITED: “Attosecond time delays in photoionization”, Alfred Maquet, Univ. P. et M. Curie Paris VI, France
INVITED: “Charge transfer processes in dissociating molecules upon core-shell photoionization, Artem Rudenko, Kansas State Univ., USA
INVITED: “Probing the attosecond dynamics of strong-field ionization”, Gerhard Paulus, Friedrich-Schiller-Univ. Jena, Germany
INVITED: “Surprising strong-field physics in laser filamentation: lasing without inversion and bound states of a free electron”, Misha Ivanov, Max Born Institute, Germany
INVITED: “Ultraintensive laser systems based on coherent beam combining”, Vladimir Trunov, Inst. of Laser Physics, Russia
INVITED: “Extreme laser power from external enhancement in high finesse Fabry-Perot cavities: application to high-flux X- or γ-Ray production through Compton scattering”, Eric Cormier, Bordeaux Univ., France
INVITED: “XUV-pump-XUV-probe experiments in atoms and molecules at the 1fs temporal scale”, Dimitris Charalambidis, Univ. of Crete, Greece
INVITED, “Towards radiation pressure proton acceleration using ultrashort and ultraintense laser pulses”, Peter Nickles, Gwangju Inst. of Science and Technology, Korea
INVITED: “Attosecond Larmor clock”, Smirnova Olga, Max-Born-inst., Germany
INVITED: “Relativistic generation of intense attosecond pulses”, Juergen Meyer-ter-Vehn, Max-Planck-Inst. for Quantum Optics, Germany
6. Nano-Optics and Plasmonics
KEYNOTE: “Nanoplasmonics: polarisation effects”, Anatoly Zayats, King’s College London, UK
Abstract: Applications of plasmonic nanostructures for polarisation manipulation will be overviewed, including new approaches to controlling polarisation based on plasmonic metamaterials with hyperbolic dispersion and non-Hermitian metamaterials with loss-coupled plasmonic resonances. All-optical ultrafast control of light polarisation using intrinsic metal nonlinearities will also be discussed.
INVITED: “Operation os SPASER in low plasmon number regime”, Alexey Vinogradov, Inst. for Theoretical and Applied Electromagnetics, Russia
INVITED: “Complex DNA plasmonics”, Na Liu, Max-Planck-Ist. for Intelligent Systems, Germany
INVITED: “Anisotropic plasmonic metasurfaces for ultra-thin wave plates”, Sergey Bozhevolnyi, Univ. of Southern Denmark, Denmark
INVITED: “Nanoscale optics with single emitters in hybrid plasmonic-photonic systems”, Femius Koenderink, FOM Inst. AMOLF, The Netherlands
INVITED: “Plasmons in low-dimensional structures”, Javier Garcia de Abajo, ICFO - The Institute of Photonic Sciences, Spain
INVITED: “”Split-hole-resonator:: a new highly efficient nonlinear optical element in nanoplasmonics”, Pavel Melentiev, Inst. of Spectroscopy, Russia
7. Physics of Metamaterials and Complex Media
INVITED: “Metamaterials and metasurfaces in THz applications”, Andrei Lavrinenko, DTU Photonik
INVITED: “Multi-color computer generated holograms from highly dispersive metamaterials”, Thomas Pertsch, Friedrich-Schiller Univ. Jena, Germany
INVITED: “Tunable photonic metamaterials”, Dragomir Neshev, The Australian Natl. Univ. Australia
INVITED: “Second-order nonlinear-optical effects in planar metamaterials”, Tatiana Murzina, Lomonosov Moscow State Univ., Russia
INVITED: “Nano spatially and femto temporally localized laser source”, Victor Balykin, Inst. of Spectroscopy, Russia
INVITED: “Advanced integrated design of solitonic metamaterial-driven structures and peregrine creation”, Allan Boardman, Univ. of Salford, UK
INVITED: “Fano resonances: Quantum and classical mechanics vs optics”, Mikhail Tribelsky, Moscow State Inst. of Radioengineering, Russia
INVITED: “Graphene and topological insulators for plasmonics and nanophotonics”, Yuri Lozovik, Inst. of Spectroscopy, Russia
INVITED: “Eigenmode analysis of surface plasmon polaritons in silver double nanowire systems”, Guang-Yu Guo, Natl Taiwan Univ., Taiwan
8. Ultrafast Phenomena and High-Precision Measurements
KEYNOTE: “The future is now: Single atom clocks, surpassing the SI second and exploring the limits of time”, Alan Madej, Inst. for National Measurements Standards, NRC, Canada
Abstract: The last few years have seen a revolution in how we can make ultra-accurate measurements of optical atomic reference transitions using highly coherent laser light. By gently holding a single atomic ion using an electro-dynamic trapping field, we can approach as close as possible the ideal situation of an isolated and unperturbed quantum system. Probing very narrow (and weak) transitions in such a trapped ion system allows one to make physical measurements surpassing our current realizations of fundamental units of measurement. This is due to the remarkable and successful union of laser cooling and trapping methods, optical frequency comb technology, and extremely narrow linewidth lasers. Our team has been investigating a reference based on a single atomic ion of strontium. When probed on an ultra-narrow (0.4 Hz) optical transition at 445 THz (674 nm), the system can be used as an extremely accurate atomic frequency/time reference. In this talk, we will describe our results that include the resolution of spectral features at the 4 Hz level (1 part in 1014) together with continuous measurement periods exceeding a few days allowing the possibility for the device to be used as an optical atomic time standard. A detailed uncertainty analysis of the reference transition has yielded a total evaluated uncertainty of 2 × 10-17. The extremely low uncertainty value in this system arises from our ability to cancel the contributions from a number of systematic shifts due the adjustment of the operating parameters of the trap environment and measurement of different transition components each having different known shift sensitivities. The evaluated accuracies of this system and others have now been shown to exceed by an order of magnitude that of the best current cesium based realizations of the SI second and promise to revolutionize the way frequency and time is realized. In this way, the era of optical based atomic clocks can be considered to be underway. At this level of accuracy, it is possible to measure the distortion of local time due to Earth’s gravitational field by changes of the clock height at the sub-meter level. Some comments will be made as to what we expect these improvements to yield in terms of sensitive tests of relativity and the ultimate limits of measuring frequency and time in the laboratory.
INVITED: “Morphology of bulk heterojunction revealed by ultrafast excitons”, Maxim Pshenichnikov, Univ. of Groningen, The Netherlands
INVITED: “Frequency combs and soliton mode-locking in optical microresonators”, Michael Gorodetsky, Lomonosov Moscow State Univ., Russia
INVITED: “Coherent magnetization dynamics”, Mircea Vomir, PCMS - Département d’Optique ultrarapide et de Nanophotonique (DON), France
INVITED: “Resolving attoscecond scale tunneling dynamics in molecules”, Barry Bruner, Weizmann Inst. of Science, Israel
INVITED: “High-precision optical clocks based on ultracold atoms and ions: new methods and approaches”, Alexey Taichenachev, Inst. of Laser Physics, Russia
INVITED: “Ultrafast time-resolved spectroscopy of photovoltaic polymer P3HT film and its benze solution”, Atsushi Yabushita, Natl Chiao-Tung Univ., Taiwan
9. ICONO Symposium: Femtosecond Laser Pulse Filamentation
KEYNOTE: “Lasing in air filaments: looking ahead”, See Leang Chin, Univ. Laval, Canada
Abstract: Femtosecond laser filamentation is a new branch of nonlinear optics that has attracted a lot of attention in recent years since its beginning in the mid-1990’s. The temporally self-compressing pulse propagates inside the filament core as a plane wave with a constant high field because of intensity clamping. Using the femtosecond Ti-sapphire laser pulse, the extended filament zone in air could be as long as meters with a diameter of about 100 microns. The filament represents a unique interaction zone with a constant high peak intensity not found in any other optical focusing geometry. Many nonlinear optical processes could be excited in this ultrafast high intensity environment. This includes the excitation of high lying electronic states of a molecule including super-excited states. The fluorescence from either the parent molecule or the fragments exhibits gain along the filament in the form of amplified spontaneous emission (ASE). So far, this ASE type of lasing has been observed in nitrogen, carbon dioxide, water vapor and some hydrocarbons. The universality of this phenomenon is proposed.
INVITED: “Laser filamentation in solids: From nanosecond to femtosecond propagation regimes”, Luc Berge, CEA-DAM, Arpajon, France
INVITED: “Development of a 10-petawatt femtosecond laser system at SIOM”, Ruxin Li, Shanghai Inst. of Optics and Fine Mechanics, P.R.China
INVITED: “Light bullets and supercontinuum spectra in femtosecond filament”, Sergey Chekalin, Inst. of Spectroscopy, Russia
INVITED: “Femtosecond ultraviolet filamentation in water”, Amelie Jarnac, Ecole Polytechnique, France
INVITED: “Strong THz fields from filaments: new physics and applications”, Stelios Tzortzakis, Inst. of Electronic Structure and Laser, FORTH & Univ. of Crete, Greece
INVITED: “Rogue waves in the beam profiles of femtosecond multifilaments”, Guenter Steinmeyer, Max-Born-Inst. for Nonlinear Optics and Ultrafast Spectroscopy, Germany
INVITED: “Non-linear optics merely using filament from a collimated femtosecond beam”, Andrei Savel’ev, Lomonosov Moscow State Univ., Russia
INVITED: “Controlling plasma channels through ultrashort laser pulse filamentation”, Andrey Ionin, Lebedev Physical Inst., Russia
INVITED: “Logarithmic scaling in the catastrophic self-focusing (collapse) of laser beam in Kerr media”, Pavel Lushnikov, Univ. of New Mexico, USA
INVITED: “Spatio-temporal evolution of the refractive index variations induced by femtosecond filament in fused silica”, Victor Kadan, Inst. of Physics, Ukraine
INVITED: “Shock front instabilities and resonant radiation dynamics in nonlinear media”, Daniel Faccio, Heriot-Watt Univ., UK
INVITED: “Filamentation of high-angle nondiffracting beams and applications to ultrafast laser processing”, Pierre-Ambroise Lacourt, Femto-ST, France
INVITED: “Filamentation dynamics probed by strong field processes”, Milutin Kovacev, Leibniz Univ. Hannover, Germany
INVITED: “Mid-infrared femtosecond filaments in tansparent media”, Daniil Kartashov, Vienna Univ. of Technology, Austria
INVITED: “Quantum mechanical interpretation of higher-order optical Kerr effect in the strong field regime”, Eric Cormier, Bordeaux Univ., France
10. ICONO Symposium: Organic Photovoltaics
KEYNOTE: “Theoretical pathways towards high efficiency organic photovoltaics”, Kees Hummelen, Univ. of Groningen, The Netherlands
Abstract: We present three different theoretical approaches to identify pathways to organic solar cells with power conversion efficiencies in excess of 20%. First, a radiation limit for organic solar cells is introduced that elucidates the role of charge-transfer (CT) state absorption. Provided this CT action is either sufficiently weak or present in its maximized form throughout the active layer material, organic solar cells can be as efficient as their inorganic counterparts. Next, a model based on Marcus theory of electronic transfer -that considers exciton generation by both the electron donor and the electron acceptor- is used to show how reduction of the reorganization energies can lead to substantial power conversion efficiency gains.
Third, and most important, we introduce the dielectric constant as a central parameter for efficient solar cells. We analyze how the dielectric constant influences every fundamental step in OPV. We analyze and model the case of the 2009 world record PTB7:[70]PCBM cell of 7.4%, using a drift-diffusion model. Based on the model and based on the fact that the exciton binding energy diminishes with increasing dielectric constant of the medium, we find that efficiencies of more than 20% are within reach upon increasing the dielectric constant εr of the material to 10.
Hummelen is among the top of his field internationally. He is ranked 7th in the Times Higher Education’s 2011 international ranking list of researchers who have published in the field of materials science over the past ten years. In the same year, he received a EUR 5 million FOM grant to further improve the solar cells.
INVITED: “Star-shaped oligothiphene-based small molecules for organic photovoltaic applications”, Sergei Ponomarenko, Enikolopov Inst. of Synthetic Polymer Materials, Russia
INVITED: “Photoinduced charge separation processes: From natural photosynthesis to organic photovoltaic cells”, Oleg Poluektov, Argonne National Lab., USA
INVITED: “Optoelectronic processes at hybrid interfaces”, Annamaria Petrozza, Istituto Italiano di Tecnologia, Italy
INVITED: “Ultrafast dynamics in organic donor-acceptor interfaces”, Guglielmo Lanzani, Politechnico di Milano, Italy
INVITED: “Dynaimcs of trapped charge carriers in organic and hybrid photovoltaic devices”, Artem Bakulin, FOM Inst. AMOLF, the Netherlands
INVITED: “Recombination pathways in high-efficiency OPV materials and devices”, Vladimir Dyakonov, Julius-Maximilians Univ. of Würzburg and Bavarian Center for Applied Energy Research e.V., Germany
INVITED: “OPVs: Spin, coherence and delocalization”, Simon Gélinas, Univ. of Cambridge, UK
INVITED: “New approaches to the material design for organic bulk heterojunction solar cells”, Pavel Troshin, Semenov Inst. of chemical Physics, Russia
INVITED: “Making most of the absorbed photon: New insights into carrier multiplication in semiconductor nanostructures”, Victor Klimov, Los Alamos Natl Lab, USA
INVITED: “Charge generation and separation in novel push-pull polymers”, Maxim Pshenichnikov, Univ. of Groningen, The Netherlands
11. Joint ICONO/LAT Symposium on THz Optics and Technologies
KEYNOTE: “New directions in THz spectroscopy of condensed matter”, Peter Jepsen, Technical Univ. of Denmark, Denmark
Abstract: The THz spectral range plays a key role in exploring physical phenomena in condensed matter. With state-of-the-art femtosecond laser technology it is possible to generate and detect extremely stable, ultrabroadband THz signals which can be used for the investigation of linear as well as extremely nonlinear phenomena in the THz range on the femtosecond time scale. In this presentation I will discuss linear, ultrafast photoconductive dynamics in disordered conductive systems and phenomena in metals where nonlinear optics is taken to the extreme electrostatic limit.
In the period 1996-2004 Peter Uhd Jepsen was at Freiburg University, Germany, where he built up a small research unit focused on terahertz spectroscopy of condensed matter systems. During this period he was among the first to document fingerprint THz vibrational modes in a wide range of solid-state materials including drugs, explosives and pharmaceutical compounds. This work lead to the award of the Habilitation and Venia Legendi Degrees from Freiburg University in 2002.
In 2005 Peter Uhd Jepsen moved to the Technical University of Denmark, and started a THz research team at Research Center COM, now DTU Fotonik – Department of Photonics Engineering. Since 2008 he has been Head of the Terahertz Technologies & Biophotonics research group which focuses on advanced, time-resolved THz spectroscopy, high-intensity THz fields, nonlinear THz spectroscopy, and THz imaging/sensing.
Peter Uhd Jepsens experiment-based research papers have attracted >2450 citations (H-index 24). He was awarded Elektrofondets Elektropris in 2007, he was guest professor at Osaka University in 2008/2009. He is currently Associate Editor for Optics Express, Topic Editor for IEEE Transactions on Terahertz Science and Technology, and on the Editorial Board of Journal of Infrared, Millimeter and Terahertz Waves.
INVITED: “Sensitive detectors of terahertz radiation”, Dmitry Khokhlov, Lomonosov Moscow State Univ., Russia
INVITED: “Monochromatic terahertz surface plasmon polaritons: prospects for surface study and optical communications”, Boris Knyazev, Budker Inst. of Nuclear Physics, Russia
INVITED: “Ultrafast high THz-field driven charge transport in semiconductors: transition from ballistic to diffusive transport regime”, Christos Flytzanis, Ecole Normale Superieure, France
INVITED: “THz Response of HgTe/CdTe Quantum Wells and Narrow-Gap HgCdTe Films: from Fundamentals to Applications”, Vladimir Gavrilenko, Inst. for Physics of Microstructures, Russia
INVITED: “Detection and quantification of atmospheric pollutants by means of THz instruments”, Robin Bocquet, Univ. du Littoral Cote d’Opale, France
INVITED: “Title to be announced”, Gun-Sik Park, Seoul Natl Univ., South Korea
INVITED: “Tunable continuous-wave terahertz generation using photonic technologies”, Kyung Hyun Park, THz Photonics Creative Research Ctr., ETRI, South Korea
INVITED: “Coherent optical control of Rydberg states in silicon”, Vinh Nguyen, Virginia Tech, USA
INVITED: “Terahertz wave generation via optical rectification of femtosecond transform-limited and nanosecond non-transform-limited laser pulses”, Galiya Kitaeva, Lomonosov Moscow State Univ., Russia
INVITED: “Efficient THz generation by optical rectification of femtosecond laser pulses and application of THz radiation for plasma investigation”, Andrey Stepanov, Inst. of Applied Physics, Russia
LAT Invited Speakers
LAT Plenary Speakers
PLENARY: “Quantum dot lasers and their optimization for various applications”, Alexey Zhukov, St.Petersburg Academic Univ., Russia
Abstract: Basic principles of quantum dot formation by self-organization phenomena in epitaxial growth will be discussed. The talk will be focused on long-wavelength quantum dots capable of emitting around 1.3 µm as it is suitable for various laser applications including optical fiber communication. The following aspects of optimization of quantum dot lasers and quantum dots themselves will be highlighted: formation of broad lasing (gain) spectra, achievement of high power levels, suppression of excited state lasing, suppression of higher spatial-order lasing, maximization of modulation frequency, minimization of heat dissipation under direct modulation, improvement of temperature stability.
PLENARY: “High power, high pulse repetition rate disk lasers and applications”, Friedrich Dausinger, Dausinger & Giesen GmbH, Germany
Abstract: Since its invention in 1991 by Adolf Giesen the thin disk technology found numerous applications in industrial production processes and scientific applications. A wide spanning substitution of rod type solid state lasers as well as of gas lasers was stimulated by stronger focussability at high power. While this feature is offered by the competing fiber laser approach, as well, the disk laser is advantageous whenever highest pulse energy at high repetition rate is required. The contribution will review what has been achieved in this respect for industrial and scientific applications and discuss the future potential.
LAT Keynote and Invited Speakers
1. Solid-State Lasers, Materials and Applications
KEYNOTE: “Bismuth-doped optical fibers: a challenging active medium for near IR lasers and optical amplifiers”, Evgeny Dianov, Fiber Optics Research Center, Russia
Abstract: It has recently been demonstrated that Bi-doped glass opical fibers are a promising active laser medium. Various types of Bi-doped optical fibers have been developed and used to construct Bi-doped fiber lasers and optical amplifiers. This presentation reviews the recent results regarding the luminescence properties of various Bi-doped optical fibers and the development of Bi-doped fiber lasers and optical amplifiers for the 1150 to 1550 nm spectral region.
Since 1994, he has been Academician of the Russian Academy of Sciences. Currently, he is Director of the Fiber Optics Research Center of the Russian Academy of Sciences. The main field of his scientific interests is laser physics and fiber and integrated optics. He has published more than 700 scientific papers and patents. Prof. Dianov was awarded the State Prize of the Soviet Union in 1974 and the State Prize of Russia in 1998. He is a Member of IEEE, ACerS, MRS, a Fellow of OSA and a Full Member of Russian Academy of Sciences.
KEYNOTE: “Fluoride laser ceramics”, Vyacheslav Osiko, A.M.Prokhorov General Physics Inst., Russia
Abstract: In this presentation we discuss our resent results in developing fluoride laser ceramics. Some features and problems of preparation of the fluoride ceramics, their mechanical, thermal, optical, spectroscopic, and laser properties will be described. In conclusions the advantages and drawbacks of fluoride laser ceramics is discussed.
INVITED: “Thermo-optical properties and thermal lensing in RE-doped double tungstate and vanadate laser crystals”, N.V. Kuleshov, Belarussian National Technical Univ., Belarus
INVITED: “Few-cycle mid-IR oscillators”, Eugene Sorokin, Technical Univ. of Vienna, Austria
INVITED: “Ultrarelativistic regimes of Petawatt-laser radiation interaction with matter”, Aleksandr Sergeev, Inst. of Applied Physics, Russia
INVITED: “Novel high-efficiency thulium lasers based on monoclinic KLu(WO4)2 crystalline host”, S. Vatnik, Inst. of Laser Physics, Russia
INVITED: “Preparation of oxide laser ceramics based on non-agglomerated nanopowders”, Yuri Kopylov, Fryazino Branch of Kotel’nikov Inst. of Radioengineering and Electronics, Russia
INVITED: “Rare-earth doped fluoride crystals for short-pulse and waveguide lasers”, P. Camy, Univ. de Caen, France
2. High-Power Lasers and Applications
KEYNOTE: “Status of the National Ignition Facility and the development of lasers for fusion energy”, Michael Dunne, LLNL, USA
Abstract: The National Ignition Facility (NIF), the world’s largest and most energetic laser system, is now fully operational at Lawrence Livermore National Laboratory. The NIF’s 192 beams have exceeded their design specification to deliver 1.8-megajoule, 500-terawatt, ultraviolet laser light in highly reproducible and precisely controlled conditions. This capability represents over 60 times more energy than any previous laser system. The NIF can now generate temperatures of more than 100 million degrees and pressures more than 100 billion times Earth’s atmospheric pressure. These conditions, exceeding those at the center of the sun, have never before been created in the laboratory. This facility is designed to compress fusion targets to the conditions required for “ignition”, liberating more energy than is required to initiate the fusion reaction. The system flexibility allows multiple target designs to be fielded, offering substantial scope for optimization of a robust target design. Recent activity has centered on two major goals: establishing the infrastructure and capability for NIF to operate as a highly instrumented scientific user facility; and beginning integrated ignition experiments with cryogenic, layered DT fuel targets. The scope for this work included the ignition physics program as well as the development of the diagnostics, targets, target cryogenic system, phase plates and other optics, and personnel and environmental protection activities required to execute ignition experiments. This talk will discuss the current status of the program to achieve ignition, presenting the most recent experimental results, and a look ahead to our plans for the coming months.
INVITED: “Overview of LLNL's advanced laser technologies”, Regina Bonanno, LLNL, USA
INVITED: “UFL-2M facility--initial steps for construction”, Sergey Bel'kov, RFNC-VNIIEF, Russia
INVITED: “A review of alkali lasers research and development”, Boris Zhdanov, US Air Force Academy, USA
INVITED: “Radiation properties of dense matter pumped by X-ray emission of plasma irradiated by laser intensities over 1020 W/cm2“, Anatoly Faenov, Joint Inst. for High Temperatures, Russia
INVITED: “Bright electron and x-ray beams with laser plasma accelerators”, Victor Malka, ENSTA Paris Tech, France
3. Laser Remote Sensing and Tunable Diode Laser spectroscopy
KEYNOTE: “Remote sensing of seawater and drifting ice by GPI compact Raman lidar”, Alexey Bunkin, Prokhorov General Physics Inst., Russia
Abstract: A compact Raman LIDAR system for remote sensing of sea and drifting ice was developed. It’s applications for express monitoring of seawater with high concentration of floating ice in the Arctic Ocean is discussed.
INVITED: “Recording and analyzing of high resolution molecular gas phase spectra at temperatures between 50 and 296K”, Arlan Mantz, Connecticut College, USA
INVITED: “Mid infrared semiconductor laser based trace gas sensor technologiwes: Recent advances and applications”, Frank Tittle, Rice Univ., USA
INVITED: “Quantum cascade laser spectroscopy in biomedical and forensic science”, Markus Sigrist, ETH Zurich, Switzerland
INVITED: “High-resolution IR laser spectroscopy of ozone isotopomers using a diode laser stabilized by a new interferometric phase frequency emission control”, Christof Janssen, Univ. Paris VI, France
INVITED: “Frequency comb spectroscopies in the mid IR”, Hans Schuessler, Texas A&M Univ., USA
4. Diffractive Optics and Nanophotonics
KEYNOTE: “Diffractive principle, devices and applications”, Changhe Zhou, Shanghai Inst. of Optics and Fine Mechanics, P.R.China
Abstract: I will report our work on diffractive principle, devices and applications. We discovered simple principles of the Talbot effect, such as the symmetry, regularly-rearranged neighboring-phase difference rule, prime-number decomposition rule. We invented distorted Dammann grating for simultaneous imaging of multiple objective planes in one single plane. We developed simplified modal method to design deep-etched fused silica gratings, such as the average mode indices of the triangular or sinusoidal gratings to describe the overall performance of its gradually-changing profile of grating grooves. We fabricated distorted Dammann grating and fused silica gratings by using the advanced microelectronic lithographic technique, holographic interference technique, and inductive-coupled-plasma dry-etching facility. Experimental results demonstrated that these novel diffractive devices should be highly interesting for a variety of applications.
INVITED: “Predictive modeling in diffractive nanophotonics”, Nikolai Kazanskiy, Image Processing Systems Inst., Russia
INVITED: “Spectral and temporal characteristics of radiation from a periodic resonant medium excited at the superluminal velocity”, R.M.Arhipov, Weierstrass Inst. for Applied Analysis and Stochastics, Germany
INVITED: “Fighting against diffraction using diffractive structures”, Haifeng Wang, Data Storage Inst., Singapore
INVITED: “Plasmonic nanophotonic devices for optical interconnection”, Min Qiu, Zhejiang Univ., China
INVITED: “Silicon nanophotonics for optical communications”, Zhiping Zhou, Peking Univ., China
5. Ultra-Fast Diagnostics in Laser Research
KEYNOTE: “From microseconds to attoseconds: Recent achievements in high-speed imaging and photonics”, Manfred Hugenschmidt, Univ. of Karlsruhe, Germany
Abstract: The purpose of this keynote is aimed at pointing out the outstanding improvements since the last half decade. During these years temporal resolution has significantly been increased by more than 12 orders of magnitude by decreased pulse durations or exposure times, respectively, in the case of visualization techniques from microseconds (10-6 s) to attoseconds (10-18 s). Due to their monochromacity, coherence and capability for short pulse generation, big steps forward were provided by the advent of lasers in 1960. Coherent optical high-speed diagnostic tools became increasingly important and were consequently developed for numerous technical, industrial, medical and fundamental research related applications. Nanosecond pulses (10-9 s) were obtained by q-switching lasers, picoseconds (10-12 s) by mode-locking and ultra-short femtoseconds (10-15 s) pulses, particularly in the case of Ti-sapphire lasers, by carefully combined mode-locking and pulse compression. Such values, according to Heisenberg uncertainty principle are approaching the utmost temporal limit for radiation in the visible and near infrared. These constraints, however, are overcome by shifting towards shorter wavelengths. For this purpose fs laser pulses interacting with He- or other rare gas atoms are capable of generating powerful, even several more orders of magnitude shorter attosecond pulses (10-18 s), so-called high harmonics by "bremsstrahlung". These shortest pulses provide not only powerful tools for studies in the field of fundamental physics, but also for unforeseen, novel high-speed diagnostic applications in the future.
The keynote concentrates on discussions of the most important milestones and corresponding experimental realizations. Many of these have been carried out at the German-French Research Institute at Saint-Louis within programs related to studies of plasmas and laser target interaction. These include visualizations of thermo-mechanical effects and ablation due to single pulse and repetitive pulse induced laser target interaction with different kinds of target materials, components or devices. Laser schlieren techniques, interferometry, holography, Moiré techniques and carrier frequency photographic recording methods proved to yield most valuable information. Typical examples are presented, for comparison, evaluated and theoretically confirmed by numerical simulation. In this context, of course, results of other internationally renowned research groups are included and cited as well. In conclusion, fundamental issues are discussed, even taking into account relativistic effects.
INVITED: “Structural dynamics of free molecules and condensed matter “, Anatoli Ischenko, Lomonosov Moscow State Univ. of Fine Chemical Technology, Russia
INVITED: “On "temporal resolution" of fs light-pulse waveform meters “, Anatoli Masalov, Lebedev Physical Inst., Russia
INVITED: “New ultrafast beam sources and diagnostics at the Advanced Laser Light Source (ALLS) Facility”, Jean-Claude Kieffer, INRS, Canada
INVITED: “Irradiation of intense hard quasi-X-ray lasers utilizing amplification by spontaneous emission”, Eiichi Sato, Iwate Medical Univ., Japan
INVITED: “Remote plasmas produced by laser filaments”, Martin Richardson, Univ. of Central Florida, USA
6. Advances in Electro/Magneto-Optics
KEYNOTE: “Controlling magnetism with light”, Theo Rasing, Radboud Univ. Nijmegen, the Netherlands
Abstract: From the discovery of sub-picosecond demagnetization over a decade ago to the recent demonstration of magnetization reversal by a single 40 femtosecond laser pulse, the manipulation of spins by ultra short laser pulses has become a fundamentally challenging topic with a potentially high impact for future spintronics, data storage and manipulation and quantum computation. In addition, when the time-scale of the perturbation approaches the characteristic time of the exchange interaction (~10-100 fs), the magnetization dynamics enters a novel, highly non-equilibrium, regime, which was recently demonstrated by both fs optical and X-ray experiments. Theoretically, this field is still in its infancy, using phenomenological descriptions of the none-equilibrium dynamics between electrons, spins and phonons via 2- or 3-temperature models and atomistic spin simulations. A proper description should include the time dependence of the exchange interaction and nucleation phenomena on the nanometer length scale. Such developments need to be supported by experimental investigations of magnetism at its fundamental time and length scales, i.e. with fs time and nanometer spatial resolution. Using ultrashort optical excitations, we may be able to manipulate the exchange interaction itself. Such studies require the excitation and probing of the spin and angular momentum contributions to the magnetic order at timescales of 10 fs and below, a challenge that could be met by the future fs X-ray FEL’s. In this lecture recent results and future challenges of ultrafast magnetization dynamics and the opto-magnetic techniques to control magnetic order will be discussed.
INVITED: “Magneto-Stark effect on excitons as origin of second harmonic generation in ZnO”, Victor Pavlov, Ioffe Physical-Technical Inst., Russia
INVITED: “Active semiconductor fibers and devices”, John Badding, The Pennsylvania State Univ., USA
INVITED: “Advances in liquid crystal devices for non-display applications”, Ibrahim Abdulhalim, Ben Gurion Univ., Israel
INVITED: “Nonlinear electro-optics: methods and devices”, Elena Mishina, MSTU MIREA, Russia
7. Biophotonics and Laser Biomedicine
KEYNOTE: “Application of non-invasive spectroscopic methods for the determination of the antioxidative status of human skin: New prospects of biofeedback measurements”, Jürgen Lademann, Charité/Universitätsmedizin Berlin, Germany
Abstract: Nowadays, non-invasive optical and spectroscopic in vivo methods like resonance Raman and reflectance spectroscopy are available to analyze antioxidants and free radicals in the human skin. In the present study, both methods were used to analyze the interaction of free radicals and antioxidants in human skin under diverse conditions.
In a first study, the antioxidative potential of volunteers during one year was investigated by Raman resonance spectroscopy. A clear influence of the nutritional habits, lifestyle and stress of the volunteers on their antioxidative potential was found. In the second part of the study, the influence of UV-radiation, infrared radiation and alcohol consumption on the antioxidative status of the human skin was investigated under standardized conditions. Additionally, it could be demonstrated that volunteers of the same age, who demonstrated high levels of antioxidants in their skin showed significantly less furrows and wrinkles than volunteers of the same age with a low concentration of antioxidants. This clearly verifies that antioxidants applied systemically in physiological mixtures and concentrations are the best prevention strategy against skin aging.
Summarizing the results it can be stated that the availability of innovative non-invasive optical and spectroscopic methods for the determination of free radicals and antioxidants in human skin allows new insights into the interaction process of free radicals and antioxidants. In the present studies it could be demonstrated that high levels of antioxidants represent an efficient prevention strategy against skin aging. The level of antioxidants in the human skin is strongly influenced by the lifestyle and the stress conditions of the volunteers.
His research topics include penetration pathways of topically applied substances; hair follicles as penetration pathway and reservoir of drugs; nanoparticles; optical measuring methods; antioxidant measurements; low-temperature plasma.
Jürgen Lademann is member of numerous committees and editorial boards of various journals, such as Skin Pharmacology and Applied Skin Pharmacology. From 2003 through 2008 he was President of the International Society of Skin Pharmacology and Physiology. In 2008, he joined the Cosmetics Committee of the Federal Institute of Risk Assessment (Germany), was appointed expert for risk assessment of nanoparticles in cosmetic products with ECETOC AISBL, of Brussels, and reviewer for various research programs of the European Union. In 2010 he was appointed member of the Light Engineering Standardization Committee, Section “Radiology”, with the German Institute for Standardization (DIN – Deutsches Institut für Normung e. V.). In August, 2011 he chaired the Gordon Conference "Barrier Function of Mammalian Skin" in the United States. In 2012 he was admitted member of the Berlin-based scientific society Leibniz Sozietät der Wissenschaften.
INVITED: “Imaging neuronal networks with femtosecond laser pulses”, Shaoqun Zeng, Huazhong Univ. of Science and Technology, P.R.China
INVITED: “High resolution functional assessment of human skin and non-melanoma skin cancer with Bessel beam OCT”, Rainer Leitgeb, Medical Univ. of Vienna, Austria
INVITED: “Fluorescence imaging in biomedical science”, Alexander Savitsky, A.N.Bach Inst. of biochemistry, Russia
INVITED: “Photo-bleaching effects of laser-excited skin autofluorescence”, Janis Spigulis, Univ. of Latvia, Latvia
INVITED: “Cellular viscoelasticity probed by active rheology in optical tweezers”, Andrey Fedyanin, Lomonosov Moscow State Univ., Russia
INVITED: “Novel laser optoacoustic system for invasive detection and characterization of intracranial hematomas and patient monitoring”, Rinat Esenaliev, Univ. of Texas Medical Branch, USA
INVITED: “Multiple roles of mitochondrial respiratory chain in mammalian cells under action of red and IR-A radiation: Cellular mechanisms of low power laser therapy”, Tina Karu, Inst. of Laser and Information Technologies RAS, Russia
8. Fiber optics
KEYNOTE: “Advances and emerging applications in fiber lasers”, Anatoly Grudinin, Fianium Ltd., UK
Abstract: In this talk we review latest developments and applications of picosecond and femtosecond fiber lasers. Considered for a long time as emerging technology with high scientific interest and tremendous potential, ultrafast fiber lasers are now widely used in a growing number of applications. Motivated by rapid improvement of performance and attractive features such as compactness and low ownership cost, ultrafast fiber lasers now challenge conventional DPSS ultrafast sources across numerous industrial sectors. Matured fiber laser technology also enables development of unique sources such as supercontinuum lasers capable of enabling scientific discovery as well as replacing incumbent illumination technologies within industrial instruments and systems. Results are being realized and ultrafast fiber lasers are now penetrating into production floor of parts and components for consumer electronics but the hunt for new applications continues.
INVITED: “Semiconductor disk lasers in fiber technology“, Oleg Okhotnikov, Tampere Univ., Finland
INVITED: “Coherent Raman interactions in gas-filled hollow-core photonic crystal fibers“, Amir Abdolvand, Max-Planck Inst. for the Science of Light, Germany
INVITED: “Hidden symmetries in nonlinear fiber optics: nonautonomous solitons and squeezions“, Vladimir Serkin, Benemerita Univ. Autonoma de Puebla, Mexico
INVITED: “Unique properties of the negative curvature hollow core fibers“, Andrey Pryamikov, FORC of RAS, Russia
INVITED: “Acrylate coated optical fibers for application temperatures up to +200°C“, Valery Kozlov, Corning Inc., NY, USA