Laser-induced modification of the nonlinear optical response of laser-deposited Cu:Al2O3 nanocomposite films

被引：27

作者：

Serna, R

Ballesteros, JM

Solis, J

Afonso, CN

Osborne, DH

Haglund, RF

Petford-Long, AK

机构：

[1] CSIC, Inst Opt, E-28006 Madrid, Spain

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

[3] Univ Oxford, Dept Mat, Oxford OX1 3PH, England

来源：

THIN SOLID FILMS | 1998年 / 318卷 / 1-2期

关键词：

laser-induced modification; Cu : Al2O3 nanocomposite films; Z-scan technique;

D O I：

10.1016/S0040-6090(97)01147-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanocomposite films of metal Cu clusters embedded in an Al2O3 matrix are fabricated by alternate pulsed laser deposition from pure metallic Cu and ceramic Al2O3 targets. Their nonlinear index of refraction n(2) and absorption coefficient beta are determined by the Z-scan technique. It is observed that upon laser exposure, the values of characteristic nonlinear optical parameters change as a function of the pump power used. These changes are related to an irreversible transformation of the films, involving modifications of the Cu clusters. (C) 1998 Elsevier Science S.A.

引用

收藏

页码：96 / 99

页数：4

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