2003年2月
Anisotropic refractive-index change in silica glass induced by self-trapped filament of linearly polarized femtosecond laser pulses
JOURNAL OF APPLIED PHYSICS
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- ,
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- 巻
- 93
- 号
- 4
- 開始ページ
- 1889
- 終了ページ
- 1892
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1063/1.1534910
- 出版者・発行元
- AMER INST PHYSICS
Permanent refractive-index change can be induced by a self-trapped filament of intense ultrashort laser pulses in silica glass. We investigated the dependence of refractive-index change on polarization of incident laser pulses. As the region of refractive-index change can be selectively etched by hydrofluoric acid (HF), we first polished the sample and etched the cross section of the regions. The HF-etched cross section of refractive-index change that was induced by linearly polarized pulses was seen to be elliptical when observed with a scanning-electron microscope. By polarimetric analysis of diffraction from gratings fabricated by polarized ultrashort laser pulses, the index ellipsoid of refractive-index change was confirmed to be uniaxial and negative. (C) 2003 American Institute of Physics.
- リンク情報
- ID情報
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- DOI : 10.1063/1.1534910
- ISSN : 0021-8979
- CiNii Articles ID : 80015814031
- Web of Science ID : WOS:000180702400007