Using colloidal gold nanoparticals for studies of laser interaction with defects in thin films

被引：19

作者：

Papernov, S ^{[1
]}

Schmid, AW ^{[1
]}

Krishnan, R ^{[1
]}

Tsybeskov, L ^{[1
]}

机构：

[1] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA

来源：

LASER-INDUCED DAMAGE IN OPTICAL MATERIALS: 2000, PROCEEDINGS | 2001年 / 4347卷

关键词：

laser-induced damage; thin films; gold nanoparticles; atomic force microscopy;

D O I：

10.1117/12.425037

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A model thin-film system based on SiO2 coating with artificially introduced gold nanoparticles was investigated for the mechanism of 351-nm, pulsed-laser-radiation interaction with well-characterized nanoabsorbers. Damage morphology, represented by craters, provides strong evidence of the important role of the melting and vaporization processes. Measured crater volumes and numerical estimates based on them suggest that crater formation can not proceed through laser-energy absorption confined within the particle. It instead starts in the particle and then, due to energy transfer, spreads out to the surrounding matrix during the laser pulse.

引用

页码：146 / 154

页数：9

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