Phase-matched second harmonic generation and cascaded nonlinearity in a Langmuir-Blodgett inverted waveguide of 2-docosylamino-5-nitropyridine

被引:4
作者
Flueraru, C
Schrader, S
Dietzel, B
Motschmann, H
机构
[1] Max Planck Inst Colloids & Interfaces, D-14476 Potsdam, Germany
[2] Univ Potsdam, Inst Phys, Lehrstuhl Phys Kondensierter Mat, D-14469 Potsdam, Germany
[3] Inst Dunnschichttechnol & Mikrosensor Teltow, D-14513 Teltow, Germany
关键词
D O I
10.1063/1.1412580
中图分类号
O59 [应用物理学];
学科分类号
摘要
We discuss the results of our second harmonic generation (SHG) and nonlinear cascading experiments in organic waveguide. The waveguide is made of two identical Langmuir-Blodgett films with 2-docosylamino-5-nitropyridine. The thin film and waveguide characterization is presented with a detailed description of the experimental setup. An inverted waveguide is produced by a proper arrangement of the thin organic films. Using a tunable laser source the phase match at lambda =1063 nm of the SHG is proved. The SHG power-corrected efficiency of 8.9% W-1 was measured. The cascading of second-order nonlinearities is characterized by means of interferometric measurements which consist of detecting a nonlinear phase shift of the fundamental in dependence on input intensity. The measured value of cascading n(2) is 2.68x10(-13) cm(2)/W. (C) 2001 American Institute of Physics.
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收藏
页码:5469 / 5477
页数:9
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