2011年8月
Observation of laser-induced stress waves and mechanism of structural changes inside rock-salt crystals
OPTICS EXPRESS
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- 巻
- 19
- 号
- 18
- 開始ページ
- 17780
- 終了ページ
- 17789
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1364/OE.19.017780
- 出版者・発行元
- OPTICAL SOC AMER
The structural changes inside rock-salt crystals after femtosecond (fs) laser irradiation are investigated using a microscopic pump-probe technique and an elastic simulation. The pump-probe imaging shows that a squircle-shaped stress wave is generated after the fs laser irradiation as a result of the relaxation of thermal stress in the photoexcited region. Pump-probe crossed-Nicols imaging and elastic simulation elucidate that shear stresses and tensile stresses are concentrated in specific regions during the propagation of the stress wave. The shear stresses and tensile stresses observed in this study can explain the characteristic laser-induced structural changes inside rock-salt crystals. (C) 2011 Optical Society of America
- リンク情報
- ID情報
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- DOI : 10.1364/OE.19.017780
- ISSN : 1094-4087
- Web of Science ID : WOS:000294489700113