Second-harmonic generation from chalcopyrite-structure semiconductor thin films

被引：9

作者：

Bottomley, DJ ^{[1
]}

Mito, A ^{[1
]}

Niki, S ^{[1
]}

Yamada, A ^{[1
]}

机构：

[1] NATL RES LAB METROL,TSUKUBA,IBARAKI 305,JAPAN

来源：

OPTICS LETTERS | 1996年 / 21卷 / 04期

关键词：

D O I：

10.1364/OL.21.000254

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose that thin films of tetragonal chalcopyrite-structure semiconductor media are promising nonlinear-optical (NLO) materials for the following reasons: Phase matching is possible with them in principle, they can be utilized in a waveguide geometry, and they are compatible with m-V substrates. We investigate the second-order NLO properties of chalcopyrite-structure CuInSe2 and CuGaSe2 thin films grown on GaAs(001), using optical second-harmonic (SH) generation at a fundamental wavelength of 790 nm. The SH intensities produced by approximately stoichiometric CuInSe2 and CuGaSe2 thin films are similar to that of GaAs. The second-order optical nonlinearities are strongly curtailed in nonstoichiometric thin films. (C) 1996 Optical Society of America

引用

页码：254 / 256

页数：3

共 15 条

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