Del Mar Photonics - Del Mar Photonics Fall 2010 Newsletter
5th International CONFERENCE on ADVANCED OPTOELECTRONICS
and LASERS (CAOL’2010)
September 10 -14, 2010
Sevastopol, Crimea, Ukraine
Deadline for submission of 3 pages camera-ready papers and 50 words abstract indicating address, fax
number and e-mail address is May 15, 2010
Organized jointly by:
IEEE Photonics Society Ukraine Chapter
IEEE AP/MTT/ED/AES/GRS/NPS/EMB East Ukraine Joint Chapter
Kharkov National University of Radio Electronics, Ukraine
V.N. Karazin National University, Kharkov, Ukraine
Taurida National V.I.Vernadsky University, Simferopol, Crimea, Ukraine
Institute of Physics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
University of Guanajuato, Mexico
Academy of Sciences of Applied Radio Electronics, Ukraine
Ministry of Education and Science of Ukraine
The 5nd International Conference on Advanced Optoelectronics and Lasers (CAOL’2010) will be held in Sevastopol,
Crimea, Ukraine, September 10 - 14, 2010. CAOL’2010 will provide a forum for experts in a wide area of laser physics and
optoelectronics. The previous conferences were successfully provided in 2003, 2005 and 2008 in Crimea, and in 2006 in
Information on the previous international meetings on optoelectronics and lasers can be found in the magazines
IEEE/LEOS Newsletters: 4-1999, 4-2000, 4-2001, 3-2004 2-2006, 2-2009 and IEEE Antennas and Propagation Magazine: 4&5-
1998, and 3-2001. The conference will cover wide frontiers in laser physics, nanotechnology, new materials, nonlinear optics
and optical communications. Its characteristic feature is a stronger emphasis on the mathematical, physical and technological
aspects of the researches, together with a detail analysis of the application problems. The technical program traditionally
consists of invited lectures and regular contributed papers.
Conference will be held in collaboration with IEEE/Photonics Society, Regional IEEE Chapters, OSA and SPIE.
Physics of advanced and novel lasers
Solid-state, liquid and gas lasers and applications
Laser resonators and beam propagation
THz generation, detection, guidance and control
Laser biomedicine and chemistry
Nanophotonics, plasmonics, near field optics
Metamaterials, optical invisibility, and
Silicon nano-photonics: nano-optoelectronics, nanoantenns,
nano sources and confined light emitters
Nonlinear optic materials and devices
High-speed optics and photonic links
PBG and photonic crystal devices
Structurated fibers and fiber lasers
Optical communications. Integrated and
nonlinear waveguide photonics
Liquid Crystals in optics and photonics
Optical measurement and instrumentation
Organic coherent optics and bio-photonics
CAOL 2010 HONORARY CO-CHAIRS
Prof. Mikhail F. Bondarenko, National University of Radio Electronics, Kharkov, Ukraine
Prof. Nikolay V. Bagrov, Taurida National V.I.Vernadsky University, Simferopol, Crimea, Ukraine
CAOL 2010 GENERAL CHEAR
Prof. Igor A. Sukhoivanov, University of Guanajuato, Mexico
TECHNICAL PROGRAM COMMITTEE CO-CHAIRS
Prof. Marian Marciniak, National Institute of Telecommunications, Poland
Prof. Vasiliy A. Svich, V.N.Karazin National University, Kharkov, Ukraine
ORGANIZING COMMITTEE CO-CHAIRS
Prof. Vyacheslav A. Maslov, V.N. Karazin National University, Kharkov, Ukraine
Dr. Igor V. Dzedolik, Taurida National V.I.Vernadsky University, Simferopol, Crimea, Ukraine
Dr. Sergii I. Petrov, National University of Radio Electronics, Kharkiv, Ukraine
10th International Conference on Laser and Fiber-Optical Networks Modeling
September 13-14, 2010
Modeling of physical processes in lasers including semiconductor, solid-state, liquid and gas ones
Nonlinear effects in active and passive optical devices and systems
Short pulse generation, ultrafast effects and dynamical phenomena
Dispersive media and light beam propagation in the optical waveguides and gratings
Novel materials, devices, and simulation tools
Photonic integrated circuits and broadband optical networks modeling
CAOL TECHNICAL PROGRAM COMMITTEE CO-CHAIRS
Marian Marciniak, National Institute of Telecommunications, Warsaw, Poland
Vasiliy A. Svich, V.N.Karazin National University, Kharkov, Ukraine
CAOL/LFNM EXPECTED INVITED SPEAKERS:
Kiyoshi Asakawa, National Institute of Materials Science (NIMS), Tsukuba, Japan
Pedro Chamorro Posada, Universidad de Valladolid, Valladolid, Spain
Richard M. De La Rue, University of Glasgow, UK
Silvano Donati, University of Pavia, Italy
N. N. Elkin, State R&D Center TRINITI, Troitsk, Russia
Tugrul Hakioglu, Bilkent Universitesi, Ankara, Turkey
Yuriy Kivshar, Nonlinear Physics Centre, Australian National University, Canberra, Australia
V.V. Kocharovsky, Institute of Applied Physics of the Russian Academy of Science, Nizhny Novgorod, Russia
V.K.Kononenko, B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk, Belarus
Antonio Lapucci, Istituto Nazionale di Ottica Applicata, Firenze, Italy
YoungPak Lee, Quantum Photonic Science Research Centre, Seoul Korea
Marian Marciniak, National Institute of Telecommunications, Warsaw, Poland
Graham McDonald, Centre of Theory & Modelling (IMR) Joule Physics Lab, University of Salford, UK
Humberto Michinel, Optics Lab. University of Vigo, Facultade de Ciencias de Ourense, As Lagoas s/n. Ourense, 32004. Spain
A.M. Negriyko, Institute of Physics, National Academy of Science of Ukraine, Kyiv, Ukraine
V.V.Obukhovsky, Taras Shevchenko University of Kyiv, Kyiv, Ukraine
A.F.Glova, State R&D Center TRINITI, Troitsk, Russia
Mauro Pereira, Sheffield Hallam University, UK
A.V.Kudryashov, Moscow State Open University, Moscow, Russia
S.L.Prosvirnin, Institute of Radio Astronomy, National Academy of Sciences of Ukraine, Kharkov, Ukraine
Bouchta Sahraoui, Laboratoire POMA CNRS UMR 6136, Universiteé d'Angers, France
Thomas Südmeyer, Swiss Federal Institute of Technology - ETH Zürich, Switzerland
E. O. Tikhonov, Institute of Physics, National Academy of Science of Ukraine, Kyiv, Ukraine
Bo Yong, Institute of Physics, Chinese Academy of Sciences, Beijing, China
V.V.Vasiltsov, Institute on Laser and Information Technologies, Shatura, Russia
Roberto Morandotti, INRS-EMT in Montreal, Canada
V.P.Kandidov, M.V.Lomonosov Moscow State University, Moscow, Russia
SPECIAL SESSION ON NONLINEAR PHOTONICS
Anton Desyatnikov, chair, Nonlinear Physics Centre, Australian National University, Canberra, Australia
Konstantin Bliokh, National University of Ireland, UK
Etienne Brasselet, Universit´e Bordeaux 1, France
Arkadi Chipouline, Friedrich Schiller University Jena, Germany
Albert Ferrando, Universitat de València, Spain
Yana V. Izdebskaya, Australian National Universit
Andrei Maimistov, Moscow Eng. Phys. Inst., Russia
Andrey E. Miroshnichenko, Australian National University
Thomas Pertsch, Friedrich Schiller University Jena, Germany
José Ramón Salgueiro, University of Vigo, Spain
Stefan Skupin, University Jena, Germany
Sergei Turitsyn, Aston University, UK
2nd International Workshop “THz Radiation: Basic Research and Applications”
September 13-14, 2010
THz sources and detectors
Intersubband lasers and detectors
Methods and strategies for THz generation and detection
THz waveguiding and localization
Nonlinear THz optics
Intersubband transport and optics
THz imaging and remote sensing
Material properties at THz frequencies
Novel materials for THz applications
Applications in biology and medical diagnosis
Detection of explosives and dangerous substances
Integration of THz with optical fibers
Igor A. Sukhoivanov, National University of Radio Electronics, Ukraine
Mauro Pereira, Sheffield Hallam University , United Kingdom
Venue and Location:
The conference will be held in the one of the well-known cities of the Crimea, in Sevastopol. Sevastopol is the city of Russian
war glory. The city is one of the famous historical places in Crimea and nice place for vacation in the South-West Crimea with
the population of about 380 thousand people. It has numerous hotels and cultural objects. The average temperature in September
ranges from +16 to +25 C.
Transportation Connections: daily air flight connection Simferopol with Kiev, capital of Ukraine. Kiev airport Borispil is
accessible by daily flights from many airports of Europe, Asia and America.
From the Simferopol airport you can take a bus or minibuses. There are also frequent domestic trains from Simferopol train
station to Sevastopol; about which you can learn at the airports.
Prof. Vyacheslav A.Maslov
V. N.Karazin Kharkov National University,
Svoboda Sq. 4, 61077 Kharkov, Ukraine
Fax: (+38 057) 7051261
Phone: (+38 057) 7021384 or (+38 057) 7075157
Every foreign visitor must have a valid passport. No visa is required for citizens of the USA, Canada, EU, Norway,
Switzerland, Japan. Participants except those mentioned need a visa to enter Ukraine. The Organizing Committee will arrange
visa support, if necessary provided applications are made at least two month in advance.
For more information look at the conference site http://caol.kture.kharkov.ua
Deadline for submission of camera-ready paper including 50 words abstract indicating address, fax
number and e-mail address is May 15, 2010 (by e-mail). Length of paper is from 3 pages.
Postdeadline paper may be submitted up to August 1, 2010
Information for authors: The Conference Proceedings will be published in English and will be available at the registration
desk. All accepted contributions will be submitted to IEEE Xplore Digital Library.
Registration and accommodation
The registration fee for participants is 300 ˆ before / on July 30 and 350 ˆ after July 30. This registration fee includes all
conference sessions, the conference proceedings, coffee breaks, reception, conference dinner and one excursion.
Cancellation Policy: A ˆ50 service charge will be assessed for processing refunds.
Conference registration form with details about registration and hotel prices will be available on the conference web site. The
arrangement of the accommodation for the participants and accompanying persons will be offered by the Conference Secretariat.
A guest program will be organized to take advantage of the history and nature charm of Sevastopol region.
SOCIAL EVENTS: City excursion; Boat trip around Sevastopol bay; Excursion to the Chersonese; Trip to Balaklava;
Visiting to the winery “Inkerman”.
K. Asakawa, Univ. of Tsukuba, Japan
Y. Sugimoto, Y. Watanabe, N. Ikeda, NIMS, Japan
N. Ozaki, Wakayama Univ., Japan
D. Kumar V, IIIT D&M, India
T. Nomura, D. Inoue, A. Miura, H. Fujikawa, K. Sato,
Toyota Central R&D Labs, Inc. Japan
Evolution of Nanophotonics from Semiconductor Photonic Crystal Device to Metal/Semiconductor Plasmonic Device.
To date, fusion of photonic crystals and quantum dots has successfully verified the possibility of SMZ-based all-optical integrated switches. Furthermore, nanofabrication technologies developed for these devices have recently proposed a new nanophotonic device with a wide-range of beam-steering based on metal/dielectric composite structures having negative refractive index behaviors. All-inclusive experimental results for all-optical switches and preliminary results for the new beam-steering device will be addressed..
State University, New York, USA
To be confirmed.
Pedro Chamorro Posada
Universidad de Valladolid, Valladolid, Spain
New Coupled Micro-Ring Resonator Structures and Laser arrays.
We have recently put forward a new type of zig-zag microring resonator chain. This device has been demonstrated, for passive structures, using SiN technology. But the active structures exhibit the most interesting behaviour and, for them, new fast and slow light phenomena have been predicted. For the stable operation of such systems, we have proposed and analysed a laser array configuration.
Laser Zentrum Hannover e.V., Germany
Laser-based Nanoengineering for Applications in Photonics and Biomedicine.
I will report on our progress in the fabrication of nanophotonic components by two-photon polymerization (2PP) of photostructurable sol-gel materials. 2PP allows the fabrication of two- and three-dimensional structures with a resolution well beyond the diffraction limit. The polymerization process is initiated when the beam of an ultra-fast,infrared laser is tightly focused into the volume of a transparent, photosensitive material. Two-photon absorption takes place within the focal volume; by moving the focused laser beam within the material, fully 3D structures can be fabricated. Possible applications of this technique for the fabrication of photonic crystals, metamaterials, plasmonic components, and biomedical devices will be discussed.
Richard M. De La Rue
University of Glasgow
Micro-/Nano-Photonic Device Structures Applied to Communications and Sensing.
The realisation of photonic devices that employ nanometre-scale structuring - and meet the vital requirement for nanometric levels of precision in their fabrication - will lead to a number of interesting near-future applications. Sub-micrometre scale waveguide cross-sections in silicon or other high refractive index materials and/or slow light structures - together with carefully tailored
dispersion properties - will enable a new wave of photonic device technology and high-density integration. Nanophotonic devices based on photonic-crystal (PhC), photonic-wire (PhW) and plasmonic/ metamaterial principles - and combinations of these principles - are likely to play a central role in delivering the required functionality and will be reviewed.
Giuseppe Martini, Silvano Donati
University of Pavia, Italy
Design criteria for Pixel-Level Integration of Optical Rangefinders in 3-D Pickup Device
We report on the analysis of the range equation of a time-of-flight optical telemeter in terms of: transmitted power, retroreflector gain, angular field of view of the receiver, noise equivalent power of the receiver, and measurement bandwidth, to ascertain the best approach to 3-D image pickup in which the 2-D morphological properties of the target surface are supplemented by the third coordinate information, that is, distance of the current pixel from the image to the scene. We then analyze new measurement techniques and new approaches of photodetector architecture to simplify as much as possible the circuitry to be integrated alongside the sensitive area of the photodetector and finally report some preliminary experimental results of 3-D image pickup.
Nikolai N. Elkin
State R&D Center TRINITI, Troitsk, Russia
3D Model of Vertical Cavity Surface Emitting Laser with Resonant Array of Quantum Wells and External Mirror.
Bidirectional beam propagation method is modified to describe wave field interference in laser cavity with multiple quantum wells. Properties of optical modes are found numerically for cylindrical vertical cavity surface emitting laser with above threshold e-beam pumping and external mirror. The stability limits of single-mode operation are determined.
Halil Tanyer Eyyuboglu
Çankaya University, Ankara, Turkey
Strong Turbulence Analysis of Sinusoidal and Hyperbolic Gaussian Beams.
We formulate the on-axis asymptotic scintillations of sinusoidal and hyperbolic Gaussian beams, namely cos and cosh Gaussian beam, under strong turbulence conditions. Our results are displayed in the form of plots of the scintillation index against propagation distance and wavelength at several source and propagation parameters. It is revealed that at small source sizes, cosh Gaussian beams will exhibit the lowest scintillations, but at large source sizes, this will reverse and cos Gaussian beams will attain such characteristics. It is further found that in strong turbulence, longer wavelengths will offer less scintillations, a behavior similar to the one, encountered in weak scintillation conditions.
Alexander F. Glova
State R&D Center TRINITI, Troitsk, Russia Properties of the Interaction of Laser Radiation with a Gaseous Dust Medium.
Radiation power for the combustion of carbon particles is measured at particles irradiation in air by a cw CO2 laser. For the medium in the form of a free vertical jet the dependences of the hreshold radiation intensity for the evaporation of aluminium and carbon particles in nitrogen on their radius are obtained.
Eugene Ya. Glushko
Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
Pneumatic Photonic Crystals: Properties and Multiscale indication of Pressure.
A pneumatic optical medium -- 1D elastic photonic crystal, sensitive to weak deviations of pressure and temperature due to gaseous voids inside is studied theoretically. It was shown that the reflectivity can be drastically changed at a chosen working frequency near the edges of the reflection windows. The resonance properties of pneumatic photonic crystals made of glass, quartz and mica including direct excition of eigenmodes in the infrared and visual regions of frequencies are analyzed. The Kerr nonlinearity type is predicted for the kind of structures. Multiscale regimes of high sensitive indication of pressure and temperature deviations are discussed.
Bilkent Universitesi, Ankara, Turkey
Confirmed. To be announced.
Hitoshi Kawaguchi, Shinji Koh
Nara Institute of Science and Technology, Japan
(110) Quantum Well based Spin VCSELs.
A vertical-cavity surface-emitting laser (VCSEL) based on (110) InGaAs/GaAs multiple quantum wells (MQWs) was fabricated and characterized. Circularly polarized lasing by optical pumping was demonstrated. A high degree of circular polarization, 0.94, was observed at 77 K, reflecting the long electron spin relaxation time in the (110) MQWs.
Nonlinear Physics Centre, Australian National University, Canberra, Australia
Tunable Nonlinear Metamaterials and Plasmon Nanofocusing.
We discuss properties and tunability of nonlinear metamaterials operating at microwave and optical frequencies. We also study fundamental nonlinear effects in plasmonic structures including guided modes of nonlinear slot waveguides, and discuss self-focusing of a plasmon beam and soliton formation in a taper in the presence of losses.
Vladimir V. Kocharovsky
Institute of Applied Physics, Russian Academy of Science, Russia Superradiant Heterolasers.
The phenomenon of collective recombination (superfluorescence or superradiance) of electrons and holes in semiconductor laser structures of various dimensions is reviewed. At the current level of technology, this phenomenon can be realized most easily in quantum-well and quantum-dot heterostructures. Under CW pumping, it could lead to the generation of powerful coherent radiation pulses which are shorter than incoherent relaxation times and have nothing to do with mode-locking technique. Particular attention is paid to the external magnetic field and distributed feedback of waves which favor suparradiant lasing.
Valerii K. Kononenko
Stepanov Institute of Physics NASB, Minsk, Belarus History and Development of Semiconductor Lasers.
A brief history of the creation of semiconductor lasers is presented. Basic attention is given to injection lasers including homo- and heterojunction laser diodes, quantum-well heterostructures, quantum cascade systems, etc. General steps in the development of the semiconductor lasers and inventions in the injection lasers are described. Theory modeling the spectral and output characteristics of the laser semiconductor sources is discussed. Set of applied semiconductor materials for laser technology and techniques and number of corresponding lasing wavelengths are listed. In addition, principal fields of application of semiconductor lasers and as well as growing total volume in the laser market are involved. Modern trends in semiconductor quantum electronics are also grounded. Download full version
Istituto Nazionale di Ottica Applicata, Firenze, Italy
Confirmed. To be announced.
Quantum Photonic Science Research Centre, Seoul Korea
Confirmed. To be announced.
Miros aw Klinkowski, Marek Jaworski, Marian Marciniak
National Institute of Telecommunications, Warsaw, Poland
Trends and Challenges in Optical Packet Networking: The Network Layer Perspective
The immense growth of the Internet which is accompanied by the emergence of new communication technologies, applications, and devices, results in the evolution from voice-centric toward data-centric optical networks. In this paper we overview some of the trends in optical packet networking and identify several related research problems. Our particular focus is on the network layer aspects of future optical networks.
Active Optics NightN Ltd., Moscow, Russia
Shack-Hartmann Wavefront Sensor - Advantages and Disadvantages.
In this paper we discuss the ability of Shack-Hartmann wavefront sensor to be used in the closed loop adaptive system. For sure we do not discuss the possibility of wavefront sensor to measure aberrations of laser beam. But at the same time we consider Shack-Hartmann wavefront sensor to be not the best device in any adaptive optical system.
Centre of Theory & Modelling (IMR) Joule Physics Lab, University of Salford, UK
Optical Soliton Pulses with Relativistic Characteristics.
A new model of spatially-dispersive optical pulses reveals novel physical regimes. Connection with special relativity is established via geometric velocity combination and invariant intervals. Transformation properties, space-time structure, two distinct representations of exact soliton solutions, conservation laws, and cnoidal waves are reported. Finally, we demonstrate robustness of these new solitons.
Optics Lab. University of Vigo, Facultade de Ciencias de Ourense, As Lagoas s/n. Ourense, 32004. Spain
Confirmed. To be announced.
Anatolii M. Negriyko
Institute of Physics, National Academy of Science of Ukraine, Kyiv, Ukraine
Dark Resonances in Rubidium Atoms Excited by Optical Comb.
In a three-level lambda system, a destructive interference between excitation pathways at laser excitation can provide the resonant reduction of fluorescence and absorption ("dark resonance"). The dark resonances in rubidium vapor excited by a femtosecond laser or laser with frequency shifted feedback have been studied theoretically and experimentally.
Vladimir G. Niziev
Institute on Laser and Information Technologies Russian Academy of Sciences, Shatura, Russia
Selected Fundamental and Applied Problems of Laser Mode Formation.
Several problems are considered in this review. Using our dipole wave theory of diffraction the analytical formulas for diffraction from a narrow ring for different polarization were
obtained. They were used in the new wave numerical model of an open resonator. A number of parameters of mode formation were investigated. It was shown that multipass geometrical "modes" win in competition with single pass Laguerre-Gaussian (LG) non-main modes during the relaxation oscillations. A method has been suggested for description of the azimuthally (A) and radially (R) polarized modes that excludes any inherent contradictions and unjustified approximations. It allows the analytical calculation of the field components for these modes, including the longitudinal one. Generation of high power beams with axial symmetric polarization in stable resonator of industrial CO2-laser with diffraction gratings has been realized. The transformation of azimuthally polarized mode to R-polarized mode was demonstrated. R-polarized beam was successfully used for cutting metal. The principal scheme based on a modified Sagnac interferometer was proposed and investigated experimentally. This external cavity technique was used for generation of R- and A-polarized laser beam.
Alexander I. Nosich
Institute of Radiophysics and Electronics of National Academy of Sciences of Ukraine
Effective Mode Volume of a Natural Mode of an Open Dielectric Resonator with an Active Region.
We study the lasing eigenvalue problem for a generic open dielectric resonator with gain material. The gain is introduced within the active region via the "active" imaginary part of the refractive index. Each eigenvalue is constituted of two positive numbers, namely, the lasing wavenumber and the threshold value of material gain. This approach yields clear insight into the lasing thresholds of individual modes. The Optical Theorem, if applied to the lasing-mode field, puts familiar "gain=loss" condition on firm footing. It enables us to rigorously introduce the conception of the volume of an open resonator and then the effective-mode volume, both for the passive cavities and cavities with active regions.
Taras Shevchenko University of Kiev, Kiev, Ukraine
Mechanisms of Holographic Recording in Photopolymers
Overview of physical mechanisms of photopolymers formations for laser and holographic applications.
Peng Qinjun, Zhimin Wang
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China
Recent Progress on Deep-Ultraviolet Coherent Light Sources
The practical deep-ultraviolet (DUV, below 200nm) coherent light sources, which are considered as puzzles of laser field, can provide a kind of unique tool to explore the front fields of biology, physics, chemistry, material etc. The methods to obtain the DUV coherent light sources are reviewed and compared, and all-solid-state DUV lasers are precise and practical compared with the others. Recent progresses on them and their engineering in our lab are reported, and some new phenomena such as Fermi pockets in superconductor are discovered with them.
Sheffield Hallam University, UK
21st Century Optical Engineering: Manipulating Nonequilibrium Many Body Effects to Create new TERA-MIR Sources
The generation of coherent, high power TERA-MIR radiation with compact steady state sources operating at room temperature is one of the main technological challenges of the early 21st century. In this talk, I will review the most recent results on different types of sources and than focus on predictive simulations of Quantum Cascade Lasers, which are the best candidate sources for this spectral range.
Dalhousie University, Halifax, Canada
Self-Similarity in Resonance Optics.
We present several classes of self-similar pulses, optical similaritons, supported by linear and nonlinear resonant media. In particular, we explore salient features of kink-like optical similaritons and compare and contrast them with dissipative shocks in gas dynamics, focusing on the unusual dynamical properties of the former. The similariton formation and experimental realization will also be discussed.
Sergey L. Prosvirnin
Institute of Radio Astronomy of National Academy of Sciences of Ukraine
Trapped Mode Resonances of Planar Arrays.
The main feature which distinguishes the trapped mode resonance from the ordinary dimensional resonance of open artificial periodic structures is that its eigenfrequency may be real on the assumption of infinitesimal dissipation of the structure, i.e. radiation losses may be zero. As a result, the quality factor of this resonance is higher than the ordinary one. Anti-phased currents or fields of the periodic structure elements are inherent to such resonances. The wavelength dependence of the resonance response has a typical peak-and-trough, so-called Fano, profile, resulting from the excitation of a localized field of the trapped mode with a discrete spectrum. In the presentation we will discuss the results of our study of the main features of trapped mode resonances in some kinds of metal-dielectric periodic arrays for both microwave and near-IR range.
Institute of sciences and molecular technologies of Angerse, MOLTECH Anjou - UMR CNRS 6200, University of Angers France
Molecular Surface Relief Grating and NLO Properties of Some Selected Organometallic Compounds for Optoelectronics Applications.
Eugene O. Tikhonov
Institute of Physics, National Academy of Science of Ukraine, Kyiv, Ukraine Difraction Feature and Applications of Holographic Brag Gratings.
Bragg character of a light diffraction on volume phase holographic gratings is considered as the basic of their applications in a number of classical and new optical instruments. Owing to high angular/spectral selectivity of the Bragg grating monochromators can be realised without application of input/output slits. Strengthening of an spectral dispersion due to the 3D-diffraction provides a single-mode oscillation in dye lasers even with nanosecond pumping. The polychromator with a such grating is attained in divergent "white" light beam in a plane of a grating dispersion. Two diffracted beams controlled power on a grating exit in a combination with the simple lens optics for beam crossing implement a 2-beam interferometer with controlled spatial resolution. Calibrated on a spatial frequency the grating on a goniometric knot forms the high-precision wavelengthmeter. High angular selectivity of such grating allows to implement optical vibration sensor with sensitivity comparable with that at modern seismographer.
Lebedev Physical Institute of Russian Academy of Sciences, Samara Branch, Samar, Russia
Light field with complex polarization structure.
Of a high interest now are the light fields with spatially inhomogeneous polarization state. These fields give new possibilities for many aspects of optical science and engineering. We consider a new effective method for the synthesis of light fields with predetermined polarization structure by means of specific diffractive optical element (DOE).
Institute of Physics, Chinese Academy of Sciences, Beijing, China
589 nm High Power Sum-Frequency Generation with Quasi-Continuous-Wave Diode-Pumped Nd:YAG Lasers.
A 12.7 W 589 nm coherent light source with the linewidth of less than 1 GHz and the beam quality of M2 = 1.2 was achieved by extra-cavity sum-frequency mixing 1064 nm and 1319 nm quasi-continuous-wave diode-pumped Nd:YAG lasers inside a LBO crystal.
Swiss Federal Institute of Technology - ETH Zürich, Switzerland
Ultrafast Laser Oscillators in the Thin Disk Geometry
SPECIAL SESSION ON NONLINEAR PHOTONICS
Anton Desyatnikov, chair
Nonlinear Physics Centre, Australian National University, Canberra, Australia Nonlinear Dynamics of Spiraling Laser Beams.
Spiraling of laser beams in nonlinear media is one of the manifestations of optical orbital angular momentum (OAM). We explore unusual dynamics of spiraling spatial solitons, including stabilization of azimuthons and quasi-periodic transformations of nonlocal solitons, as well as contribution of OAM towards suppression of catastrophic self-focusing, or collapse, in Kerr media.
National University of Ireland, UK Spin-Orbit Interactions of Light at Nano-Scales.
Spin and orbital degrees of freedom of light are independent of each other as the wave propagates in vacuum. Interaction of light with inhomogeneous or anisotropic media produces spin-orbit coupling, which leads to the spin-to-orbital angular momentum conversion and spin-dependent transport of light. I will review recent studies of the fine spin-induced phenomena upon the light propagation, focusing, and scattering. The spin-orbit interactions are characterized by a fundamental duality of dynamical (particle) and geometrical (wave) aspects and carry unique subwavelength information about evolution of light.
Universit´e Bordeaux 1, France Liquid Crystals Defects: Nonlinear Optics and Optical Vortices.
Liquid crystals can self-assemble into various phases characterized by well-defined orientational ordering of their crystalline axis and are well-known to be sensitive to external fields. Light is no exception. Our purpose here is to present the concepts of singular optical manipulation of liquid crystals and singular beam shaping using liquid crystals, which involves the presence of natural or artificial defects for the liquid crystal molecular spatial ordering.
Friedrich Schiller University Jena, Germany Multipole Model for Metamaterial Homogenization.
Homogenization of optical metamaterials is one of the fundamental problems of electrodynamics of composite materials. Here the homogenization approach using multipole expansion is analysed and compared with the phenomenological one. Applications of the developed model for different structures and various phenomena are presented.
Universitat de València, Spain Symmetry-Induced Forces on Phase Singularities.
We show the existence of external forces acting on phase singularities whose origin can be attributed to the presence of short-term discrete-symmetry potentials. These special forces can break highly charged phase singularities into single-charged ones and provide them with non-zero orbital angular momentum even when the potential no longer acts.
Yana V. Izdebskaya
Australian National University Nonlocal Interactions of Solitons in Bias-Free Nematic Liquid Crystals.
With an emphasis on experimental observations, we review the state of the art in the area of optical spatial solitons in unbiased nematic liquid crystals, outlining their basic and applied features and discussing recent results, including soliton interaction with curved surfaces and observation of dynamical instability of two counterpropagating solitons.
Moscow Eng. Phys. Inst., Russia Nonlinear Solitary Waves in Positive-Negative Refractive Media
Propagation of the fundamental and third harmonic solitary waves in medium characterized by negative refraction index at the frequency of fundamental wave and by positive refractive index at the third harmonic frequency and simultons formation are considered. Gap soliton in a novel kind of nonlinear coupler with one channel or both channels fabricated from nonlinear medium having negative refraction index is found.
Andrey E. Miroshnichenko
Australian National University Reversible Optical Nonreciprocity in Periodic Structures with Liquid Crystals.
We suggest a novel approach to achieve reversible nonreciprocal optical response in a periodic photonic structure with a pair of defects, one of them being a nonlinear liquid crystal. We show that nonreciprocal effects can be reversed by changing the wavelength due to change of localization properties of defect modes.
José Ramón Salgueiro
University of Vigo, Spain Nonlinear Coupling in Plasmonic Structures.
Nonlinear modes and switching characteristics of plasmonic directional couplers are studied. The structures are created by two neighbouring metal-dielectric-metal waveguides with the slots filled in a nonlinear dielectric material. The different nonlinear modes are calculated, and the FDTD numerical simulations are carried out to study the power transfer in such plasmonic couplers and evaluate the effect of optical losses on the coupler switching characteristics.
University Jena, Germany Rotating Three-Dimensional Solitons
We study formation of rotating three-dimensional solitons (azimuthons) in Bose Einstein condensate with attractive nonlocal nonlinear interaction. In particular, we demonstrate formation of toroidal rotating solitons and investigate their stability. The presence of repulsive contact interaction does not prevent the existence of those solutions, but allows to control their rotation.
Aston University, UK Random Distributed Feedback Fibre Lasers.
The concept of random lasers making use of multiple scattering in amplifying disordered media to generate coherent light has attracted a great deal of attention in recent years. I will present our recent results on a fibre laser system with a mirrorless open cavity that operates via Rayleigh scattering, amplified through the Raman effect. The fibre waveguide geometry provides transverse confinement and effectively one-dimensional random distributed feedback, leading to the generation of a stationary near-Gaussian beam with a narrow spectrum, and with efficiency and performance comparable to regular lasers. Rayleigh scattering due to inhomogeneities within the glass structure of the fibre is extremely weak, making the operation and properties of the proposed random distributed feedback lasers profoundly different from those of both traditional random lasers and conventional fibre lasers.
Del Mar Photonics - Del Mar Photonics Fall 2010 Newsletter