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Time-Resolved Optical Waveguide Experiments with Conjugated Polymers: Direct Measurement of the Magnitude and Sign of Third Order Non-linear Optical Susceptibility

Time-Resolved Optical Waveguide Experiments with Conjugated Polymers: Direct Measurement of the Magnitude and Sign of Third Order Non-linear Optical Susceptibility
共轭聚合物的时间分辨光波导实验：直接测量三阶非线性光学磁化率的幅度和符号
批准号：
9012808
负责人：
Alan Heeger
金额：
$0.0万
依托单位：
University of California-Santa Barbara
依托单位国家：
美国
项目类别：
Continuing grant
财政年份：
1990
资助国家：
美国
项目状态：
已结题
起止时间：
1990-11-01 至 1995-10-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9012808&HistoricalAwards=false
关键词：
TimeResolvedOpticalWaveguideExperiments

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英文摘要
This research involves an experimental study of nonlinear optical waveguides made from conjugated polymers. A punp-probe technique capable of picosecond time resolution will be employed to measure the intensity-dependent refractive indices of conjugated polymers such as p-phenylenevinylene (PPV) and its derivatives, polythienylenevinylene, the poly (3-alkylthiophenes) etc. for which waveguide quality thin films can now be fabricated. The technique can determine both the magnitude and sign of the third order nonlinear susceptibility. Determination of the sign is important in sorting out the different mechanisms.
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