Optical nonlinearity of nanocrystalline Au/ZnO compostite films

被引：34

作者：

Liao, HB ^{[1
]}

Wen, WJ

Wong, GKL

Yang, GZ

机构：

[1] Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China

[2] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China

[3] Hong Kong Univ Sci & Technol, Inst Nano Sci & Technol, Kowloon, Hong Kong, Peoples R China

[4] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China

来源：

OPTICS LETTERS | 2003年 / 28卷 / 19期

关键词：

D O I：

10.1364/OL.28.001790

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The third-order nonlinear optical susceptibilities, chi((3)), of composite films consisting of nanocrystalline Au and ZnO particles were investigated by use of a degenerate four-wave mixing scheme. The maximum value of chi((3)), measured at a laser wavelength of 532 nm and a pulse duration of 70 ps, was similar to2 x 10(-6)esu. Also, this chi((3)) value was achieved with small absorption (the surface-plasmon peak was at the 615-nm wavelength). Our composite materials showed no discernible degradation after they were subjected to irradiation for a total of 3 x 10(7) high-intensity pulses (24 Mw/cm(2), 70-ps pulse duration at 500 Hz) during 16 h of testing. (C) 2003 Optical Society of America.

引用

页码：1790 / 1792

页数：3