Optical control of third-harmonic generation in azo-doped polymethylmethacrylate thin films

被引：21

作者：

Churikov, VM ^{[1
]}

Hsu, CC ^{[1
]}

机构：

[1] Natl Chung Cheng Univ, Dept Phys, Chiayi 621, Taiwan

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 14期

关键词：

D O I：

10.1063/1.1314878

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The possibility of controlling third-harmonic generation in polymethylmethacrylate doped with disperse red 1 via exposition by frequency-doubled and fundamental radiation of a Nd:YAG laser is demonstrated. It was possible to change the third-harmonic efficiency up to four times depending on pumping intensity. The change was completely reversible after 15 min of dark relaxation in the case of pumping the sample with the second harmonic. This effect is attributed to the reversible change of third-order susceptibility due to trans-to-cis isomerization of azo-bond molecules. (C) 2000 American Institute of Physics. [S0003-6951(00)02840-0].

引用

页码：2095 / 2097

页数：3

共 8 条

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[2]

Fiorini C., 1995, Nonlinear Optics, Principles, Materials, Phenomena and Devices, V9, P339

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