Laser-induced sign reversal of the nonlinear refractive index of Ag nanoclusters in soda-lime glass

被引：64

作者：

Osborne, DH ^{[1
]}

Haglund, RF

Gonella, F

Garrido, F

机构：

[1] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA

[2] Univ Padua, INFM, Dipartimento Fis, I-35131 Padua, Italy

[3] CNRS, IN2P3, CSNSM, F-91405 Orsay, France

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 1998年 / 66卷 / 04期

关键词：

D O I：

10.1007/s003400050427

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Intense visible laser light is observed to reverse the sign of the nonlinear refractive index of silver-nanocluster-doped glass. The nanoclusters were produced by sequential ion exchange and implantation. During Z-scan measurements with a 6-ps laser, the composite glass was modified, visibly altering the transmission of a region of the sample and irreversibly changing its nonlinear optical response. The mechanism of this change appears to be a photochemical reaction which produces a silver-oxide layer on the surface of the nanoclusters.

引用

页码：517 / 521

页数：5

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