学术活动简讯(英文)

February 20091-4 Advanced Solid-State Photonics 2009 OSA Optics & Photonics Congress(ASSP),Grand Hyatt Denver,Denver,CO;Contact:Optical Society of America,2010 Massachusetts Ave.,NW,Washington,DC 20036-1023;Tel.(202)416-1907,or(800)723-4632,Fax:(202)416-6140;E-mail:custserv@osa.org     

学术活动简讯(英文)

February 2009 1-4 Advanced Solid-State Photonics 2009 OSA Optics & Photonics Congress(ASSP),Grand Hyatt Denver,Denver,CO;Contact:Optical Society of America,2010 Massachusetts Ave.,NW,Washington,DC 20036-1023;Tel.(202)416-1907,or(800)723-4632,Fax:(202)416-6140     

Natural Bond Orbital (NBO),Natural Population Analysis (NPA)and Non Linear Optical Properties of (1S,2R)-2-amino-1-phenylpropan-1-ol Using DFT Method

The molecular structure of (1S,2R)-2-amino-1-phenylpropan-1-ol (abbreviated as 2APPO) conformers have been studied in the gas phase. Natural Bond Orbital Analysis and Non Linear Optical properties of 2APPO have been performed by DFT level of theory using B3LYP/6-311++G(d,p) basis set. The atomic charges, electronic exchange interaction and charge delocalization of the molecule have been performed by Natural Bond Orbital (NBO) analysis, Natural Population Analysis (NPA) and Non Linear Optical (NLO) properties have been constructed at B3LYP/6-311++G(d,p) level to understand the optical properties.     

C20分子与C20-、C202-离子的特性分析与比较

应用密度范函理论(DTF)的B3LYP方法,在6-31G*基组水平上对C1对称C20富勒烯分子及C20-、C202-离子进行了几何结构的全局优化、频率以及自然键轨道分析计算(NBO),然后对三者的几何构型、稳定性、振动光谱等做了分析和比较.研究表明:离子的键长普遍比分子的键长长,C20-离子的稳定性最高.C202-离子的红外峰值较大,C20-离子的拉曼光谱峰值较大,振动光谱可以用来作为区分三者的手段.     

Quantum Chemical Calculations on 4-[2-(Tert-Butylamino)-1-Hydroxyethyl]-2-(Hydroxymethyl)Phenol by Density Functional Theory

Density functional theory (DFT) calculations have been carried out for the compound 4-[2-(tert-butylamino)-1-hydroxyethyl]-2-hydroxymethyl) phenol (4BAHEHMP) by using the B3LYP method at the 6-311++G (d,p) basis set level. The electric dipole moment (μ) and the first hyperpolarizability (α) values of the investigated molecule were computed. Total and partial density of state (TDOS and PDOS) and also overlap population density of state (COOP or OPDOS) diagrams analysis were presented. HOMO and LUMO energies confirm that charge transfer occurs within the molecule. In addition Molecular Electrostatic Potential (MEP), Natural Bond Orbital analysis (NBO) and Non- Linear Optical (NLO) properties are studied.     

Information for Authors

<正>Chinese Optics Letters is a short-article journal for the rapid dissemination of new,important results in all branches of optical science and technology and related fields,published monthly by Chinese Laser Press and distributed abroad by the Optical Society(OSA).Submission of Papers Authors must submit online:http://col.opticsx.org.Electronic files of MS Word(recommended)and LaTeX are acceptable.     

Information for Authors

<正>Chinese Optics Letters is a short-article journal for the rapid dissemination of new,important results in all branches of optical science and technology and related fields,published monthly by Chinese Laser Press and distributed abroad by the Optical Society(OSA).Submission of Papers Authors must submit online:http://col.opticsx.org.Electronic files of MS Word(recommended)and LaTeX are acceptable.     

Information for Authors

<正>Chinese Optics Letters is a short-article journal for the rapid dissemination of new,important results in all branches of optical science and technology and related fields,published monthly by Chinese Laser Press and distributed abroad by the Optical Society(OSA).Submission of Papers Authors must submit online:http://col.opticsx.org.Electronic files of MS Word(recommended)and LaTeX are acceptable.     

Information for Authors

<正>Chinese Optics Letters is a short-article journal for the rapid dissemination of new,important results in all branches of optical science and technology and related fields,published monthly by Chinese Laser Press and distributed abroad by the Optical Society(OSA).Submission of Papers Authors must submit online:http://www.col.orq.cn.Electronic files of MS Word(recommended)and LaTeX are acceptable.     

Information for Authors

<正>Chinese Optics Letters is a short-article journal for the rapid dissemination of new,important results in all branches of optical science and technology and related fields,published monthly by Chinese Laser Press and distributed abroad by the Optical Society(OSA).Submission of Papers Authors must submit online:htto://www.col.org.cn.Electronic files of MS Word(recommended)and LaTeX are acceptable.     

Information for Authors

<正>Chinese Optics Letters is a short-article journal for the rapid dissemination of new,important results in all branches of optical science and technology and related fields,published monthly by Chinese Laser Press and distributed abroad by the Optical Society(OSA).Submission of Papers Authors must submit online:http://www.col.org.cn.Electronic files of MS Word(recommended)and LaTeX are acceptable.     

Acoustical News

Calendar1994June20-22,1994,AarhusDenmarkScandinavianAcousticalMeeting'94information:AcousticalSocietyofDcnmarkc/oTheAcousticalLaboratoryB1dg.352,DTHDK-2800LyngbyDENMARKJune13-15,1994Montrea1CanadaThirdIntcrnationalCongressonAir-andStructurc-BorncSoundandVibrationTwohundredwordabstractsshouldbesubmittedto:MalcolmJ.Crocker,SecretariatThirdInternahona)Congress,MechanicalEngineeringDc-partmcnt,202RossHall,AuburnUniversity,AL36849-5341,USAorFax205-844-3307byDecember31,1993atth…     

Editorial

<正>Optical microcavities confine light to small volumes for a long time,which significantly enhances light-matter interaction.In recent decades,higher quality factor(Q)and smaller mode volume(Vm)cavities have been fabricated,contributing a major     

光谱分析、光谱测量

O433.1 2004010074 射频辉光放电硅烷等离子体的光发射谱研究=Optical emission spectroscopy invesugation on the RF-generated SiH_4plasma[刊,中]/杨恢东(南开大学光电所,天津(300071)),吴春亚…∥光电子·激光.—2003,14(4)—375-379 通过对RF-PECVD技术沉积氢化非晶/微晶硅(a-Si:H/μc-Si:H)薄膜沉积过程中硅烷(SiH_4)等离子体的光发射谱(OES)原位测量,系统地研究了不同的等离子体工艺     

富勒烯有机-无机杂化材料的非共珍三阶非线性光学特性

采用中心波长800 nm、脉宽30 fs的超短激光脉冲,通过飞秒光开关技术(Optical Kerr Shutter,OKS)对富勒烯有机-无机杂化材料的飞秒超快非线性特性进行了实验研究.获得270 fs的开关时间,所得的富勒烯有机-无机杂化材料的三阶非线性系数X~(3)约为4.5×10~(-4) esu,比C_(60)分子的三阶非线性系数X~(3)高一个数量级.通过实验测定的光克尔信号强度与激发光和探测光偏振方向夹角的依赖关系表明:30 fs的超短激光脉冲激发富勒烯有机-无机杂化材料的克尔信号主要是源于光诱导双折射效应,而非用200 fs的超短激光脉冲时来自瞬态栅的自衍射效应.