Saturated absorption and nonlinear refraction of silicate glasses doped with silver nanoparticles at 532 nm

被引：76

作者：

Ganeev, RA

Ryasnyansky, AI

Stepanov, AL

Usmanov, T

机构：

[1] NPO Akadempribor, Tashkent 700125, Uzbekistan

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

[3] Samarkand State Univ, Samarkand 703004, Uzbekistan

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

[5] Karl Franzens Univ Graz, Inst Expt Phys, A-8010 Graz, Austria

[6] Karl Franzens Univ Graz, Erwin Schrodinger Inst Nanoscale Res, A-8010 Graz, Austria

[7] Russian Acad Sci, Kazan Phys Tech Inst, Kazan 420029, Russia

来源：

OPTICAL AND QUANTUM ELECTRONICS | 2004年 / 36卷 / 10期

关键词：

nonlinear absorption; nonlinear refraction; silicate glass; silver nanoparticles;

D O I：

10.1007/s11082-004-3392-x

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The nonlinear optical characteristics of silicate glasses doped with silver nanoparticles are investigated by Z-scan technique using second harmonic radiation of picosecond Nd: YAG laser ( lambda = 532 nm, tau = 55 ps). The real and imaginary parts of third-order nonlinear susceptibility of silver-contained glasses were measured. It was found that the sign of Imchi((3)) was negative due to saturated absorption and the sign of Rechi((3)) was changed from negative (self-defocusing) to positive (self-focusing) with growth of laser radiation intensity. The mechanisms responsible for saturated absorption and nonlinear refraction are discussed.

引用

收藏

页码：949 / 960

页数：12

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