Influence of laser ablation parameters on optical and nonlinear optical characteristics of semiconductor solutions

被引：22

作者：

Ganeev, RA ^{[1
]}

Ryasnyansky, AI

机构：

[1] NPO Akadempribor, Tashkent 700125, Uzbekistan

[2] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

[3] Samarkand State Univ, Samarkand 703004, Uzbekistan

[4] Univ Paris 06, CNRS, Inst Nano Sci Paris, F-75015 Paris, France

来源：

OPTICS COMMUNICATIONS | 2005年 / 246卷 / 1-3期

关键词：

laser ablation; semiconductor nanoparticles; optical properties; nonlinear optical properties;

D O I：

10.1016/j.optcom.2004.10.056

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The influence of temporal, spectral, and energy parameters of laser radiation on optical and nonlinear optical properties of solutions of CdS and As2S3 nanoparticles prepared by laser ablation in liquids was investigated. The observed blue shift of the absorption spectra of As2S3 and CdS nanoparticles was due to quantum size effect. The basic mechanism of nonlinear refraction of the aqueous solutions of As2S3 and CdS nanoparticles is a Kerr effect in the field of picosecond pulses, whereas the thermal effect is responsible for nonlinear refraction in semiconductor nanoparticles-containing solutions in the field of nanosecond pulses. The comparison of nonlinear optical characteristics of solutions and thin films of these semiconductors was discussed. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：163 / 171

页数：9

共 33 条

[1] Formation of ZnSe and US quantum dots via laser ablation in liquids [J].