Optical nonlinearities of space selectively precipitated Au nanoparticles inside glasses

被引：62

作者：

Qu, SL ^{[1
]}

Zhao, CJ

Jiang, XW

Fang, GY

Gao, YC

Zeng, HD

Song, YL

Qui, JR

Zhu, CS

Hirao, K

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Photon Craft Project, Shanghai 201800, Peoples R China

[2] Japan Sci & Technol Corp, Shanghai 201800, Peoples R China

[3] Harbin Inst Technol, Dept Sci, Weihai 264209, Peoples R China

[4] Harbin Inst Technol, Dept Phys, Harbin 150001, Peoples R China

[5] Kyoto Univ, Grad Sch Engn, Dept Chem Mat, Sakyo Ku, Kyoto 6068501, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 368卷 / 3-4期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/S0009-2614(02)01885-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Optical nonlinearities of Au nanoparticles precipitated inside glasses induced by irradiation of a focused femtosecond laser were investigated using Z-scan technique with 8 ns pulses at 532 nm. The transformation behaviors both from self-defocusing to self-focusing and from saturable absorption to reverse saturable absorption were observed in the glass samples, which depend drastically on the irradiation power density of the femtosecond laser used. The optical nonlinearities were analyzed in detail and proved numerically by the excited-state theory of conduction band electrons. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：352 / 358

页数：7

共 16 条

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