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Proceedings Paper

Influence of laser wavelengths and polarizations on absorption of KDP crystal
Author(s): Xiaocong Peng; Yuanan Zhao; Yueliang Wang; Zhen Cao; Guohang Hu; Jianda Shao
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Paper Abstract

We measured the absorption of type I doubler KDP crystal at different laser wavelengths (1064, 532 and 355 nm) by using laser induced deflection (LID) technique. We also performed the absorption measurements in the cases where beam polarization was parallel to the principal plane (Pd//Pp) and perpendicular to it (Pd⊥Pp). To account for the experiment results, a model based on crystal dichroism was developed to calculate the absorption coefficients for O ray (αo) and E ray (αe) at different laser wavelengths. It is found that the dichroism is manifested especially clearly at 1064nm, but not clearly at 355nm/532nm. It implies that the absorption at 1064nm is mainly due to lattice absorption, whereas defects absorption is responsible for the absorption at 355nm/532nm.

Paper Details

Date Published: 1 August 2017
PDF: 4 pages
Proc. SPIE 10339, Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers, 1033918 (1 August 2017); doi: 10.1117/12.2271127
Show Author Affiliations
Xiaocong Peng, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Yuanan Zhao, Shanghai Institute of Optics and Fine Mechanics (China)
Yueliang Wang, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Zhen Cao, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Guohang Hu, Shanghai Institute of Optics and Fine Mechanics (China)
Jianda Shao, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 10339:
Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers
Jianda Shao; Takahisa Jitsuno; Wolfgang Rudolph, Editor(s)

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