Optical nonlinearity resulting from a light-induced structural transition in gallium nanoparticles

被引：37

作者：

MacDonald, KF ^{[1
]}

Fedotov, VA ^{[1
]}

Zheludev, NI ^{[1
]}

机构：

[1] Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 07期

关键词：

D O I：

10.1063/1.1543644

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report that a light-induced structural transformation between different phases of gallium provides a mechanism for a strong optical nonlinearity. The nonlinearity has been studied in transient pump-probe experiments on nanoparticle films deposited on the ends of optical fibers. The magnitude and relaxation time of the response show hysteretic dependencies on temperature in the range from 100 to 300 K, are enhanced near the phase transition points and disappear at temperatures above 220 K. (C) 2003 American Institute of Physics.

引用

页码：1087 / 1089

页数：3

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