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Proceedings Paper

Ultrafast UV laser induced dynamics in dielectric coating materials before laser damage
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Paper Abstract

The laser induced ultrafast dynamics in fused silica under few-cycle UV laser excitation is investigated in the present study. Using sub-10 fs UV laser pulses, we characterize the free carrier dynamics in the fused silica before laser damage. After laser excitation, free carrier in the conductive band is found to turn into self-trapped excitons within about 300fs. It is possible that the trapped exciton will result in the incubation effect under the condition of ultrafast high-frequency pulsed UV laser exposure.

Paper Details

Date Published: 22 September 2014
PDF: 5 pages
Proc. SPIE 9238, Pacific Rim Laser Damage 2014: Optical Materials for High-Power Lasers, 923805 (22 September 2014); doi: 10.1117/12.2073613
Show Author Affiliations
Juan Du, Shanghai Institute of Optics and Fine Mechanics (China)
Zehan Li, Shanghai Institute of Optics and Fine Mechanics (China)
Takayoshi Kobayashi, The Univ. of Electro-Communications (Japan)
Japan Science and Technology Agency (Japan)
National Chiao-Tung Univ., Osaka Univ. (Taiwan)
Yuanan Zhao, Shanghai Institute of Optics and Fine Mechanics (China)
Yuxin Leng, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 9238:
Pacific Rim Laser Damage 2014: Optical Materials for High-Power Lasers
Takahisa Jitsuno; Jianda Shao; Wolfgang Rudolph, Editor(s)

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