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Proceedings Paper

Characterization of thermal absorption and nonlinear absorption in KDP/DKDP crystals with different orientations
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Paper Abstract

The optical characteristics of KDP/DKDP crystals, including thermal absorption and nonlinear absorption, were investigated through thermal lens method and Z-scan method. It is found that the thermal absorption in KDP crystal behaves anisotropy at 355nm and 532nm and nonlinear absorption anisotropy in KDP/DKDP crystals is also found at 520nm. For KDP and DKDP samples, the thermal absorption coefficient of crystals with different orientations is slightly different. The four-photon absorption coefficient γ of z-cut KDP sample is larger than that of other orientations. The relationship of nonlinear absorption coefficient γ is z<II<I for KDP sample, while II≈z for DKDP sample.

Paper Details

Date Published: 21 June 2019
PDF: 5 pages
Proc. SPIE 11056, Optical Measurement Systems for Industrial Inspection XI, 110563H (21 June 2019); doi: 10.1117/12.2525460
Show Author Affiliations
Xiaocong Peng, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Key Lab. of Materials for High Power Laser (China)
Yuan'an Zhao, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Key Lab. of Materials for High Power Laser (China)
Dawei Li, Shanghai Institute of Optics and Fine Mechanics (China)
Key Lab. of Materials for High Power Laser (China)
Guohang Hu, Shanghai Institute of Optics and Fine Mechanics (China)
Key Lab. of Materials for High Power Laser (China)
Long Zhang, Key Lab. of Materials for High Power Laser (China)
Jianda Shao, Shanghai Institute of Optics and Fine Mechanics (China)
Key Lab. of Materials for High Power Laser (China)


Published in SPIE Proceedings Vol. 11056:
Optical Measurement Systems for Industrial Inspection XI
Peter Lehmann; Wolfgang Osten; Armando Albertazzi Gonçalves Jr., Editor(s)

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