文章基本信息

标题：Laser-Induced Point Defects in Fused Silica Irradiated by UV Laser in Vacuum
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作者：Xiaoyan Zhou ; Xinda Zhou ; Jin Huang 等
期刊名称：Advances in Condensed Matter Physics
印刷版ISSN：1687-8108
电子版ISSN：1687-8124
出版年度：2014
卷号：2014
DOI：10.1155/2014/853764
出版社：Hindawi Publishing Corporation
摘要：High-purity fused silica irradiated by third harmonic of the Nd:YAG laser in vacuum with different laser pulse parameters was studied experimentally. Laser-induced defects are investigated by UV spectroscopy, and fluorescence spectra and correlated to the structural modifications in the glass matrix through Raman spectroscopy. Results show that, for laser fluence below laser-induced damage threshold (LIDT), the absorbance and intensity of fluorescence bands increase with laser energies and/or number of laser pulses, which indicates that laser-induced defects are enhanced by laser energies and/or number of laser pulses in vacuum. The optical properties of these point defects were discussed in detail.