2006-2007学年科学前沿报告会一览
2007-2008学年科学前沿报告会一览
2008-2009学年科学前沿报告会一览
2009-2010学年科学前沿报告会
科学前沿报告会(148)
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报告题目：
Emerging optical fibres: new fibre materials, structures and applications
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报 告 人：
Dr Yinlan Ruan
Institute for Photonics & Advanced
Sensing, University of Adelaide, Australia
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报告地点：
物理楼 中212
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报告时间：
9月15日（周三）下午15:00-17:00
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联 系 人：
龚旗煌（65884）
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报告摘要:
New classes of optical fibres such as micro- and nano-structured fibres are rapidly emerging that allow fibres to be used well beyond their established role in data transmission. Soft glasses have high linear and nonlinear refractive indices and low softening temperature. New fabrication techniques such as extrusion processes can be used to create flexible and complex structures within these glasses fibres. An overview of recent progress in a range of areas including new transmission fibres in mid-infrared spectrum, highly nonlinear fibres, chemical and biological sensing with new fibres and novel fibre lasers will be reviewed. All the works are performed in our recently established IPAS in University of Adelaide, Australia.
科学前沿报告会(147)
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报告题目：
Ultrafast/nonlinear Optical Technologies for Spectroscopy and Imaging
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报 告 人：
Dr. Kebin Shi,
Department of Electrical Engineering
The Pennsylvania State University
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报告地点：
物理楼 中212
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报告时间：
2010年9月8日 （周三）下午15:00-17:00
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联 系 人：
龚旗煌（65884）
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报告摘要:
Novel ultrafast/nonlinear optical spectroscopy and imaging techniques developed in Ultrafast Optics group at Penn State will be presented. In particular, recent progresses on 3D CARS holographic imaging with nano-second temporal resolution will be introduced. Supercontinuum (SC) based systems including TRAP’D (Time-Resolved And Polarization-Discriminated) CARS (Coherent Anti-Stokes Raman Scattering) spectroscopy, SC optical trapping and SC based imaging apparatus will also be discussed.
科学前沿报告会(146)
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报告题目：
Solving the three-body Coulomb breakup problem in prolate spheroidal coordinates
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报 告 人：
Dr. Liang Tao
Lawrence Berkeley National Laboratory, USA
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报告地点：
物理楼 北236
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报告时间：
2010年8月31日 (周二) 上午10:00
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联 系 人：
彭良友（54986）
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报告摘要:
We seek to develop theoretical and computational methods for treating electron processes that are important in photon-driven chemistry and physics, which are currently beyond the grasp of the first principles methods, either because of the complexity of the targets or the intrinsic complexity of the processes themselves. A principle focus is the development of new methods for solving multi-photon single and double ionizations towards the diatomic molecular target and unraveling unambiguously electron correlation effects. In these methods, Exterior Complex Scaling (ECS) provides the computational framework for our studies of strongly correlated processes that involve several electrons in the continuum. This talk first discusses the essential difficulties of the three-body Coulomb breakup problem in quantum mechanics. It then describes a grid-based nonperturbative method, called Finite Element combined with Discrete Variable Representation (FEM-DVR) in prolate spheroidal coordinates, which are the natural choice of coordinates for diatomic targets. The numerical implementations are presented for the case of photon-impact double ionization of hydrogen molecule as well as a discussion of applications to the high harmonic generation. The present formulation has paved the way towards the first quantum mechanical treatment of molecular ionization dynamics beyond the Born-Oppenheimer approximation, which may be a key issue in interpreting ultrafast experiments on molecules using X-ray pulses.
科学前沿报告会(145)
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报告题目：
Multi-channel molecular high-order harmonic generation from asymmetric diatomic molecules
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报 告 人：
Dr. Xue-Bin Bian
Universite de Sherbrooke, Canada
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报告地点：
物理楼 北236
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报告时间：
2010年6月17日 上午9:00
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联 系 人：
彭良友（54986）
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报告摘要:
Molecular high-order harmonic generation (MHOHG) from ground and excited states of an asymmetric molecular ion HeH$^{2+}$ is investigated from numerical simulation of the corresponding time-dependent Schr\"{o}dinger equation. It is found that in the tunneling ionization regime, considerable resonant excitation occurs by laser induced electron transfer (LIET) to neighboring ions and multiple frequency(fractional-order) harmonics are observed from the excited states shifted by some energy $\Delta$ from the main $N\omega$ energy harmonics. A new extended cutoff energy larger than the recollision energy law $I_{p}+3.17U_{p}$ (where $I_{p}$ is the ionization potential, $U_{p}=I/4\omega^{2}$ denotes the ponderomotive energy.) is also observed in the MHOHG spectra. A time series analysis is used to confirm this MHOHG channel which is created by initial ionization from the excited state prepared by LIET and recombination to the neighboring ion at specific field phases, resulting in interference between recombination pathways from ground and excited states. Due to strong orientation effects, a double-plateau structure in MHOHG is observed accompanied by multiple frequency harmonics, which is a general feature for asymmetric molecules in intense laser fields. This effect is a possible new tool for complex attosecond pulse generation.
科学前沿报告会(144)
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报告题目：
Photophysics study on the spin triplet state of phosphors used for organic light emitting diodes
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报 告 人：
Professor Taiju Tsuboi
Kyoto Sangyo University, Japan
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报告地点：
物理楼 南408
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报告时间：
5月27日10:00-12:00
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联 系 人：
肖立新（54990）
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报告摘要:
Phosphorescent molecules are more interested as the emitting materials for high efficient in organic light emitting diode (OLED) than the fluorescent ones because the formation ratio between fluorescent singlet and phosphorescent triplet excitons is 1:3, giving rise to increase the external quantum efficiency. It is necessary to clarify the emissive triplet state of phosphorescent materials to improve the efficiency and to apply the triplet state for white emission generation in highly stable fluorophores.
Several unusual and curious experimental results have been observed. For example, the phosphorescence photoluminescence (PL) intensity of Ir(ppy)3 doped in CBP and polycarbonate never changes against temperature at 300-4 K, while its decay time changes largely and it has three decay components. The green PL peak quickly shifts to low energy at 5 K with time after 5-ns pulsed laser excitation. Furthermore, unlike the Ir(ppy)3 doped in CBP, the PL intensity shows complicated change for Ir(ppy)3 doped in TPD with decreasing temperature from 300 K to 10 K. In the case doped in TPD, very long and temperature-sensitive decay component is observed. We have a success in explaining all of these optical properties theoretically taking into account that (1) the emitting triplet state T1 consists of three zero-field splitting substates, (2) non-radiative relaxation occurs among these substates, (3) energy transfer between the Ir(ppy)3 guest molecule and endothermic and exothermic host molecules, and (4) there are competeness among various rediative and non-radiative relaxation processes which are depending on temperature.
From these study we can clarify what happens in electrophosphorescence generation from not only OLEDs with Ir(ppy)3 emitter but also OLEDs with various triplet emitters.
Additionally the triplet state of phosphors can be used to enhance zero phosphorescence intensity of fluorophores such as Alq3 to strong intensity, leading to dual emission of fluorescence and phosphorescence in fluorophores. This is caused by the Dexter energy transfer from triplet state of phosphor to the triplet state of fluorophore. Using this method, generation of white emission is possible from single fluorescent material such as Bebq2 and Alq3.
科学前沿报告会(143)
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报告题目：
宽禁带半导体及量子结构的光学与非线性光学研究
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报 告 人：
馮哲川 教授,
國立台灣大學電機工程學系及电机系,
http://gipo.ntu.edu.tw/zcfeng.htm
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报告地点：
物理楼 中212
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报告时间：
5月21日下午4:00-6:00
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联 系 人：
王树峰（54990）
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主要研究領域:
半導體長晶技術及材料研究, 多學科檢測技術在光學/電子材料/結構的應用, 寬能隙半導體 製程及元件研製, 電腦理論模擬寬能隙半導體及奈米結構之光學和材料特性。
qianyan143.jpg
科学前沿报告会(142)
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报告题目：
Dynamics of Structure and Charge in Thin Film Electronic Materials
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报 告 人：
Professor Paul Evans
Materials Science and Engineering, University of Wisconsin
Madison, Wisconsin USA,
evans@engr.wisc.edu, http://xray.engr.wisc.edu
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报告地点：
物理楼中212
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报告时间：
5月21日下午2:00-4:00
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联 系 人：
陈志坚（54990）
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报告摘要:
The dynamics of phenomena relevant to the properties of emerging electronic materials span a range of timescales extending from picoseconds to seconds. We present experimental studies in two distinct regimes: the structural dynamics of complex oxide ferroelectrics and multiferroics, and the dynamics of charge transfer at organic/inorganic interfaces. In complex oxides, recent advances in time-resolved synchrotron x-ray microdiffraction have allowed us to probe piezoelectric distortion, polarization, and polarization switching dynamics at picosecond timescales. We describe the application of these advanced scattering techniques to the challenge of understanding the properties of ferroelectrics in high electric fields and the role of confinement in ferroelectric/dielectric superlattices. These results can be compared in detail to first-principles theoretical predictions based on density functional theory. At organic/inorganic interfaces, the overall efficiency of photoinduced charge transfer depends on the rates of charge transport between organic and inorganic semiconductor materials. We have developed novel field-effect transistor devices that allow us to study the rates of charge transfer at pentacene/ZnO interfaces, and the dependence on interface structure and composition.
This work is sponsored by the U. S. Department of Energy Office of Basic Energy Sciences, by the U S. National Science Foundation Division of Materials Research, the University of Wisconsin Materials Research Science and Engineering Center, and the American Chemical Society Petroleum Research Fund.
科学前沿报告会(141)
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报告题目：
有机光电功能材料与光伏器件
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报 告 人：
艾希成 教授
中国人民大学化学系
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报告地点：
物理楼中212
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报告时间：
4月30日上午10:10-12:00
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联 系 人：
肖立新（54990）
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报告摘要:
有机与无机光伏器件的研究具有相近的研究历史，只是近20年左右，有机光伏器件的研究才取得了突破性进展，光能转换效率已达到了7%左右。本次讨论从有机光伏器件发展历史角度分析有机半导体材料本征物理化学性质与分子结构与器件结构优化的关系，研讨有机光伏器件的发展趋势。
科学前沿报告会(140)
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报告题目：
32nm微电子技术代新原理装备研究
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报 告 人：
夏洋 研究员
中科院微电子研究所
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报告地点：
物理楼南408
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报告时间：
4月21日下午2：30-4：30
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联 系 人：
肖立新（54990）
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报告摘要:
介绍微电子技术装备发展概况，及微电子技术进入的32nm技术代后有可能引发的新原理加工装备研究，主要涉及薄膜生长、注入掺杂、光刻、清洗等装备和技术介绍，如原子层外延ALD生长高K，浸没等离子注入实现超浅结，光子筛无掩膜光刻，中性粒子刻蚀，动态薄层清洗，超临界清洗，激光退火等新原理技术。
科学前沿报告会(139)
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报告题目：
Physics with intense and not so intense lasers: matter creation and imaging
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报 告 人：
Prof. Qichang Su
Dept. of Phys., Illinois State University
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报告地点：
物理楼中212
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报告时间：
12月30日 （周三）下午14:30-16:00
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联 系 人：
龚旗煌（65884）
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报告摘要:
We will review the steps needed to reduce quantum field theory to quantum mechanics as its limiting case. In order to contribute to this discussion, we have made computer simulations of oversimplified model systems based on quantum field theory. The direct visualization of intrinsically quantum field theoretical process has provided us with some first insight into the spontaneous electron-positron pair creation and a resolution of the Klein paradox.
Non-invasive imaging with light has become an active area of research in recent years. We will discuss possible imaging schemes in simple 1D and 2D model systems. We suggest that the concept of the point-spread function traditionally used to predict the blurred image pattern of various light sources embedded inside turbid media can be generalized under certain conditions to predict also the presence and location of spatially localized absorbing inhomogeneities based on shadow point spread functions associated with each localized absorber in the medium. This technique permits the reconstruction of the location of absorbers.
科学前沿报告会(138)
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报告题目：
Tunable Electronic and Optical Properties of Graphene
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报 告 人：
Prof. F Wang
UC Berkeley
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报告地点：
物理楼中212
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报告时间：
12月28日 （周一）下午15:30-17:00
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联 系 人：
龚旗煌（65884）
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报告摘要:
Graphene, a single layer of carbon atoms, exhibits novel two-dimensional electronic behavior. Importantly, the unusual graphene physics can be controlled. In this talk, Dr. Wang will show how they can vary optical transitions in monolayer graphene and control the bandgap in bilayer graphene through electrical gating. He will also describe an unusual tunable phonon-electron Fano resonance in bilayer graphene.
科学前沿报告会(137)
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报告题目：
光子晶体中新的非线性现象
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报 告 人：
蒋寻涯 研究员
中科院上海微系统与信息技术研究所
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报告地点：
物理楼中212
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报告时间：
12月23日 （周三）下午2:30-4:00
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联 系 人：
龚旗煌（65884）
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报告摘要:
光子晶体作为一个研究领域已有二十年的研究历史。本报告将对光子晶体研究的新进展和新现象作较详细的介绍，重点介绍光子晶体自准直周围的新非线性现象，以及光子晶体禁带中的超快动态非线性效应。 光子晶体作为一个研究领域已有二十年的研究历史。本报告将对光子晶体研究的新进展和新现象作较详细的介绍，重点介绍光子晶体自准直周围的新非线性现象，以及光子晶体禁带中的超快动态非线性效应。
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报告人简介:
蒋寻涯研究员，1996年8月北京大学物理系硕士毕业，2001年1月美国依阿华州立大学（Iowa State Univ.）博士毕业，2001年1月－2004年8月在美国硅谷Dicon-Fiberoptics公司和美国麻省理工学院等进行光子学研究工作。在2003年就开始以中科院“百人计划”择优和上海市杰出引进人才，在中科院上海微系统与信息技术研究所任研究员和博士生导师，光子晶体课题组组长。长期致力于光子学的研究，在光子晶体、特异介质、无序激光、新非线性现象等方面做出多项非常有意义的工作。
科学前沿报告会(136)
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报告题目：
Micro/nanofibers: merging fiber optics and nanotechnology for new opportunities
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报 告 人：
童利民教授，浙江大学
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报告地点：
物理楼中212
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报告时间：
12月16日 （周三）下午2:30-4:00
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联 系 人：
古 英（52882）
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报告摘要:
When its diameter goes down to or below the wavelength of the light, an micro/nanofiber exhibits interesting optical properties including tight optical confinement, high fractional evanescent waves, steep field gradient, enhanced field intensity on surface and large waveguide dispersion, which open up new opportunities for connecting fiber optics with near-field optics, nonlinear optics, plasmonics and quantum optics on micro and nanoscale. In this talk I will introduce the basic principles and properties of micro/nanofibers, and their potentials for micro and nanoscale devices such as optical interferometers, resonators, lasers and sensors.
科学前沿报告会(135)
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报告题目：
Nanostructured Materials: Enabing a New Era of Optoelectronic Technologies
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报 告 人：
CONNIE J. CHANG-HASNAIN (常瑞华)
John R. Whinnery Chair Professor
Dept. of Electrical Engineering and Computer
Science, UC BERKELEY
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报告地点：
物理楼中212
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报告时间：
12月9日 （周三）下午14:30-16:00
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联 系 人：
龚旗煌（65884）
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报告摘要:
I will discuss the synthesis and characteristics of III-V compound nanoneedles that are monolithically grown on Si and sapphire despite of a very large lattice mismatches, 4% and 33%, respectively. The structures show excellent crystalline and optical quality. The nanoneedles are promising for ultrahigh gain avalanche photo detectors, low threshold lasers on Si and high efficiency solar cells. This new material enables the opportunities of making highly efficient optoelectronic devices on Si. They will find applications for optical interconnects, field emission tips, AFM probe tips and atto-liter liquid delivery.
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报告人简介:
Connie Chang-Hasnain is the Whinnery Chair Professor of EECS and Chair of the Nanoscale Science and Engineering (NSE) Graduate Group at UC Berkeley. She is a Chang Jiang Scholar Endowed Chair at Tsinghua University. Her research interests have been in vertical cavity surface emitting lasers， MEMS tunable optoelectronic devices and nanostructured materials and nano-optoelectronic devices. She has been the Editor in Chief of Journal of Lightwave Technology.
科学前沿报告会(134)
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报告题目：
金属纳米结构的制备技术及其应用研究
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报 告 人：
张新平 教授
北京工业大学应用数理学院
北京工业大学北京市特聘教授
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报告地点：
物理楼中212
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报告时间：
12月2日 （周三）下午14:30-16:00
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联 系 人：
龚旗煌（65884）
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报告摘要:
本报告将介绍金属纳米结构的大面积、低成本、高效率制备技术，以及纳米光栅的一些特殊的光物理性能。重点讨论波导耦合金属光子晶体的光谱学响应特性，及其在光学工程、有机光电子学和生物传感器中的应用研究。
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报告人简介:
张新平教授，1991年本科毕业于天津大学，1994年核工业总公司理化工程研究院硕士毕业，2002年德国马尔堡大学物理系博士毕业。2002－2004年德国波恩大学应用物理研究所教授助理，2004－2006年英国剑桥大学卡文迪许实验室光电子学研究组工作并任超快激光光谱学实验室负责人，2006年11月被聘为北京工业大学北京市特聘教授，主要科研成果发表在Adv. Mater.、NanoLett.、Appl. Phys. Lett.、Opt. Express等期刊上。主要研究领域：超快激光器件研制与应用，时间分辨光谱学及其在有机光电子学中的应用研究，纳米光学与技术，金属型光子晶体的制备、光学特性及其应用研究。
科学前沿报告会(133)
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报告题目：
波在光子晶体中的负折射和反常传递现象
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报 告 人：
张向东教授，
北京师范大学物理系，
国家杰出青年基金获得者
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报告地点：
物理楼中212
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报告时间：
11月25日 （周三）下午14:30-16:00
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联 系 人：
龚旗煌（65884）
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报告摘要:
光子晶体作为一个研究领域已有二十年的研究历史。本报告在简短回顾二十年来有关光子带隙材料研究成果的基础上，对光子晶体研究的新进展如负折射和反常传递现象作较详细的介绍。同时也将对与光子晶体相关的“Metamaterial”的研究状况作评述。
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报告人简介:
张向东教授，1998年4月中国科学院物理研究所博士毕业，1998年5月至2002年4月在香港科技大学物理系从事博士后研究，2002年8月任北京师范大学物理系教授，2004年入选教育部新世纪优秀人才支持计划，2008年获国家杰出青年基金资助。研究方向包括光子晶体和低维纳米结构的物理特性及其应用研究。已发表论文80余篇，其中包括4篇PRL、9篇APL和30篇Phys.Rev.，发表的论文被引用880余次，其中他引近700次。
科学前沿报告会(132)
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报告题目：
Structural Characterization and Polarization Field Mapping of III-Nitride Materials and Devices
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报 告 人：
Prof. David J. Smith,
Department of Physics, Arizona State University, USA
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报告地点：
物理楼南408
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报告时间：
11月25日 （周三）上午10:00-11:30
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联 系 人：
王新强（67150）
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报告摘要:
Electron microscopy provides a wide range of techniques for structural characterization of III-nitrides. These include high-resolution electron microscopy (defect identification and strain field analysis), Z-contrast imaging in the scanning transmission electron microscope (cation distribution), convergent-beam electron diffraction (local lattice parameter), and electron holography (internal electric field). These various TEM techniques have been used separately or in tandem in our recent investigations of III-nitride materials and devices. Examples to be briefly described include the following:
* InAlN/GaN heterostructures, which show lateral phase separation that leads to the development of vertical ‘honeycomb cell’ structures;
* Relaxed InN QDs, which are invariably associated with threading dislocations in the underlying GaN buffer layer, and the interfacial misfit is accommodated by periodic dislocation arrays;
* Polarization field mapping of Al0.85In0.15N/GaN heterostructures reveals electric fields of ~6.9 MV/cm within the AlN layer, and a 2DEG of ~ 2.1 x 1013 /cm2 near the AlN/GaN interface;
* Deep-UV-emitting AlGaN quantum wells, which show internal quantum efficiencies as high as 50%;
* Determination of the atomic structure of the m-plane AlN/SiC interface;
* Annealing of AuNiAlTi/Al0.84In0.16N/AlN/GaN Ohmic contacts for InAlN HFETs causes development of large TiN contact inclusions protruding into the underlying GaN buffer layer.
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报告人简介:
David J. Smith is currently Regents' Professor in the Department of Physics. His long-term research activities have centered around the development and applications of atomic-resolution electron microscopy. He is the author/co-author of 15 book chapters and over 400 refereed journal publications. He is a Fellow of the American Physical Society and the UK Institute of Physics, and he is currently also President of the Micoscopy Society of America.
科学前沿报告会(131)
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报告题目：
Manipulating and Controlling Atoms and Photons Using Optical Nanofibers
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报 告 人：
Prof. Kohzo Hakuta,
Department of Applied Physics and Chemistry
Univ. of Electro-Communications, Tokyo 182-8585, Japan
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报告地点：
物理楼中212
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报告时间：
11月18日下午14:40 -16:00
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联 系 人：
肖云峰（54867）
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报告摘要:
Manipulating atoms and photons is one of the key issues in modern quantum optics. Various ideas have been proposed and demonstrated so far in this context. Typical examples would be laser cooling, atom trapping, electromagnetically-induced transparency, and cavity quantum-electrodynamics. In this talk, we discuss a novel method to manipulate and control atoms and photons using subwavelength-diameter silica-fibers, “optical nanofibers”. We show theoretically and experimentally how optical nanofibers can open new perspectives for manipulating atoms and photons, such as modification of spontaneous emission, super-radiance, etc. We explore the nanofiber/atom interaction using laser-cooled Cs-atoms. We demonstrate that photons from small number of atoms, average number of which is less than one, can readily be observed through nanofiber with good S/N ratio. We show also that the optical nanofibers can work as a very effective tool for exploring van der Waals interactions between atoms and fiber surface. We show furthermore that the optical nanofiber method would open a new aspect for exploring spontaneous emission from single atoms. Bunching and anti-bunching behaviors depending on the atom number and excitation/measurement geometries are discussed. Future prospects are also presented.
Key Words: Optical nanofiber, quantum optics, single atom, laser-cooled atoms
科学前沿报告会(130)
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报告题目：
Overview of slow light
and quantum memory
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报 告 人：
Prof. B. S. Ham,
Inha University, S. Korea
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报告地点：
物理楼中212
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报告时间：
11月11日下午2：30-4：00
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联 系 人：
古 英（52882）
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报告摘要:
Since the observation of ultraslow light in BEC in 1999, slow light has been intensively studied for both enhanced nonlinear optics and quantum optics applications. In this talk we review ultraslow light for the fundamental physics and potential applications such as weak power limit nonlinear optics and quantum information. For quantum information applications, we introduce bichromatic light halt and ultra-efficient photon echoes as quantum memories. We also introduce photonic switching in metamaterials using localized surface plasmons.
科学前沿报告会(129)
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报告题目：
An Introduction to Atto-second Physics
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报 告 人：
Prof. Toru Morishita,
Department of Applied Physics and Chemistry, University of Electro-Communications, Japan
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报告地点：
物理楼中212
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报告时间：
2009年10月28日（周三）
下午4:00 -- 5:00
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联 系 人：
龚旗煌（65884）
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报告摘要:
Following the recent developments in laser technology, ultrashort xuv (extreme ultraviolet) light pulses with duration of several hundred attoseconds have been reported. Such pulse durations are comparable to the time scale of the electronic motion in atoms and molecules, thus opening up a route to the time-resolved study of electronic dynamics in matter, akin to the time-resolved tracking of the atomic motion in a molecule enabled by the advent of femtosecond laser pulses. In the talk, these advances as well as some of the expected implications are presented.
科学前沿报告会(128)
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报告题目：
Novel Applications of Ultrafast Laser Pulses：
From Biological Microscopy to Laser Welding
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报 告 人：
Dr. Yasuyuki OZEKI
Graduate School of Engineering,
Osaka University, Japa
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报告地点：
物理楼中212
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报告时间：
10月28日 （周三）下午14:40-16:00
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联 系 人：
李焱（ 62754867 ）
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报告摘要:
Focused ultrafast laser pulses can induce a variety of nonlinear-optical interactions, which are three dimensionally confined in a micrometer scale. The first topic of this talk is label-free biological microscopy based on stimulated Raman scattering, using two-color laser pulses. 3D imaging of biological samples based on spectroscopic information of molecular vibration is achieved with high sensitivity and high contrast. The second one is ultrafast laser welding, which has various advantages over the ordinary laser welding. For instance, transparent materials can be joined, and dissimilar materials with different thermal coefficients can be welded since thermal effect is minimized.
科学前沿报告会(127)
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报告题目：
太赫兹科学技术及其应用
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报 告 人：
姚建铨院士
天津大学精仪学院
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报告地点：
物理楼中212
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报告时间：
10月21日 （周三）下午14:30-16:00
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联 系 人：
龚旗煌（ 62765884 ）
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报告人简历:
姚建铨院士是中国著名激光与非线性光学专家，1997年当选中国科学院院士，现任中国光学学会理事、中国光学学会激光专业委员会副主任、天津大学现代光学仪器研究所所长，并任全国政协委员、天津市政协副主席、民进中央常委等多项职务。姚建铨院士提出非线性双轴晶体最佳相位匹配精确计算的理论和方法，被国际学术界称为“姚技术”、“姚方法”,并为国际学术界广泛应用；提出了激光谐振腔“类高斯分布理论”；发展了高转换效率下倍频理论及准连续泵浦倍频新方法；实现了输出功率34瓦的内腔倍频YAG激光器，并以此为光源，完成了激光三维扫描系统；首次采用准连续运转的绿光光源泵浦染料及钛宝石可调谐激光器，从而从理论到器件技术方面建立了一个新的“准连续泵浦激光调谐系统”的技术体系，为我国新型固体激光及调谐技术作出了突出贡献。
近年来姚院士特别关注太赫兹科学技术，主要研究以激光变频的方法产生太赫兹辐射源。2005年他与其他6位院士共同发起第270次香山会议“太赫兹科学技术的新发展”，推动了太赫兹研究在我国的开展和深化。
科学前沿报告会(126)
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报告题目：
光子晶体及其应用
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报 告 人：
胡小永副教授
北京大学物理学院
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报告地点：
物理楼中212
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报告时间：
10月14日（周三）下午14:30-16:00
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联 系 人：
龚旗煌（ 62765884 ）
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摘要:
自从Yablonovith 和John 在1987年提出“光子晶体”的概念以后，光子晶体及其应用逐渐成为纳米光子学领域的研究前沿和热点之一。光子晶体是介电常数在空间周期性排列的一种光子学材料，具有独特的光子带隙特性，利用光子晶体能够实现人工操控光子的传输状态和模式，因此，光子晶体被认为是构造集成光子回路的重要平台，以及实现新型集成光子器件的重要基础，这些特性使得光子晶体在超快速信息处理和光计算等领域都具有重要的应用背景。本报告将介绍我们在有机非线性光子晶体超快开关等光子器件领域的研究进展。
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报告人介绍:
胡小永副教授，2004年中科院物理研究所博士毕业，2004年10月－2006年8月北京大学物理学院光学专业博士后，2006年9月留校工作至今，主要从事非线性光子晶体及其应用的研究。在Nature Photonics, Opti. Lett.和APL等刊物上发表学术论文30余篇。
科学前沿报告会(125)
-
报告题目：
Quantum phenomena in opto-mechancal system: cooling oscillators and generating EPR lights
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报 告 人：
Dr. Zhang-Qi Yin
Physics Department, University of Michigan
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报告地点：
物理楼北236
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报告时间：
9月25日上午8:30 -10:00
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联 系 人：
肖云峰（54867）
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摘要:
In this talk, I will discuss the quantum phenomena in opto-mechanical systems. In order to observe the quantum effect in opto-mechanical oscillators, we need to cool it to the quantum regime. The noise from laser phase fluctuation sets a major technical obstacle to cool the nano-mechanical oscillators to the quantum region. We propose a cooling configuration based on the opto-mechanical coupling with two cavity modes to significantly reduce this phase noise. We also discuss detection of the phonon number when the mechanical oscillator is cooled near the quantum region and specify the required conditions for this detection. We propose a scheme to produce continuous variable entanglement between phase-quadrature amplitudes of two light modes in an opto-mechanical system. For proper driving power and detuning, the entanglement is insensitive with bath temperature and Q of the mechanical oscillator. Under realistic experimental conditions, we find that the entanglement could be very large even at room temperature.
科学前沿报告会(124)
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报告题目：
激光束矢量性的表示方法及其性质
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报 告 人：
李春芳 教授
上海大学
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报告地点：
物理楼中212
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报告时间：
9月23日 （周三）下午14:30-16:00
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联 系 人：
李焱（ 62754867 ）
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摘要:
用Jones矢量表示偏振的概念，本质上只能描述平面电磁波的矢量性。要描述有限光束（比如光镊中的非近轴光束）的矢量性，需要引入新的概念。本报告的主要目的就是介绍最近发现的这样一个概念——特征单位矢量，研究这个概念在描述光束矢量性中的作用，并分析这个概念与其它有关问题的联系，包括光的角动量和光的“自旋霍尔效应”。
科学前沿报告会(123)
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报告题目：
Nanophotonics Devices and Their Applications
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报 告 人：
Prof. Min Qiu,
Royal Institute of Technology (KTH),
Stockholm, Sweden
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报告地点：
物理楼中212
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报告时间：
9月16日 （周三）下午14:30-16:00
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联 系 人：
龚旗煌（ 62765884 ）
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摘要:
Nanophotonics are technologies where the flow of optical-frequency electromagnetic radiation is engineered in dimensions, or with function-enabling feature-sizes, similar to or smaller than the light wavelength. The research on nanophotonic devices are thus essential to achieve the high photonic integration density, as well as many other applications. Our group has been working on nanophotonics for many years, covering photonic crystals, optical metamaterials, plasmonics, silicon photonics, etc. In the present talk, I will review some of recent results on nanophotonic devices and their applications.
科学前沿报告会(122)
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报告题目：
Silicon etching
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报 告 人：
Dr. Tom Lee,
Nanoelectronics Research Laboratory,
University of California, Los Angeles
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报告地点：
物理楼北236
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报告时间：
9月11日上午8:30-10:00
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联 系 人：
肖云峰（54867）
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摘要:
In this talk, Dr. Tom Lee will introduce several etching technology. In particular, he will focus on the silicon etching. After this talk, Tom Lee will share his experience in managing a clean room.
Dr. Tom Lee: Principal Development Engineer in Nanoelectronics Research Laboratory at University of California, Los Angeles.
科学前沿报告会(121)
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报告题目：
Vibrational (FTIR and Raman) microspectroscopies and spectral imaging in cells and tissues: biomedical applications
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报 告 人：
Michel MANFAIT,
Professor,
Head of MéDIAN Unit, CNRS UMR 6237, Faculty of Pharmacy, University of Reims Champagne-Ardenne France
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报告地点：
物理楼 中212
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报告时间：
9月1日 下午15:00
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联 系 人：
吕国伟（62753932）
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摘要:
Vibrational microspectroscopies (FTIR and Raman) are highly potential tools to investigate biological samples at various scales from cell analysis to in vivo development. This presentation will consider biomedical applications of spectral micro-imaging (hyper spectral, multimodal), from frozen and paraffin embedded (without chemical dewaxing) tissue sections. Examples will focus on characterisation of i/ cancer lesions of skin, peritoneum and colon, and ii/ aortic pathologies. Perspectives of an in vivo Raman analysis with an up to date dedicated instrumentation will be shown.
科学前沿报告会(120)
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报告题目：
Near-field Fluorescence correlation spectroscopy
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报 告 人：
Franck LEI,
Associate Professor,
Faculty of Sciences, University of Reims Champagne - Ardenne, France
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报告地点：
物理楼 中212
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报告时间：
9月1日 下午14:00
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联 系 人：
吕国伟（62753932）
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摘要:
Fluorescence correlation spectroscopy (FCS) of biological samples at high fluorophore concentrations (~mM) requires a very tiny sampling volume (~al) for single-molecule measurements. Such a minim volume is not available with the conventional confocal FCS. Implanting near-field optic technology into the conventional FCS allows further reducing the sampling volume. In this speech, the principle, instrumentation and experiential results of a developed near-field FCS will be presented.
科学前沿报告会(119)
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报告题目：
Optical Physics and Photonics
at Yale University
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报 告 人：
Prof. Hui Cao,
Applied Physics and Physics，Yale University
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报告地点：
物理楼 北236
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报告时间：
2009年8月19日 上午9:45-11:00
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联 系 人：
李焱（ 54867 ）
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摘要:
In this talk, I will give an overview of optical research programs at Yale University, including nanophotonics, biophotonics, complex optical materials and phenomena. I will present a few examples, such as micro and nano-lasers, localization of surface plasmons in metallic nanostructrures, random lasers, ultraviolet photonic crystal lasers, and structural colors of bionanostructures.
科学前沿报告会(118)
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报告题目：
Double ionization of hydrogen
molecules in an intense laser field
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报 告 人：
Prof. Xiao-Min Tong,
University of Tsukuba, Japan
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报告地点：
物理楼 中212
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报告时间：
2009年8月13日，下午2:30 -- 4:00
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联 系 人：
彭良友（54986）
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摘要:
I will review our theoretical works on the double ionization of hydrogen molecules in an intense laser field and possible applications of the process. There are two ways to doubly ionize hydrogen molecules: sequential ionization and non-sequential ionization. The time-interval between the first and second ionizations can be used to measure time in a femtosecond domain (so called a molecular clock). I will also present our recent work on the sequential double ionization via a resonant state, which has been reported in a recent experiment using a short wavelength intense laser pulse.
