Absorption modification by laser irradiation in DKDP crystals

Xiaocong Peng; Yuanan Zhao; Yueliang Wang; Guohang Hu; Liujiang Yang; Jianda Shao

doi:10.3788/COL201816.051601

Chinese Optics Letters, Volume. 16, Issue 5, 051601(2018)

Absorption modification by laser irradiation in DKDP crystals

Xiaocong Peng^1,2, Yuanan Zhao^1,3、*, Yueliang Wang^1,2,4, Guohang Hu¹, Liujiang Yang¹, and Jianda Shao¹

¹Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

²University of Chinese Academy of Sciences, Beijing 100049, China

³State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

⁴National Engineering Laboratory for Modern Materials Surface Engineering Technology, Guangdong Institute of New Materials, Guangzhou 510650, China

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Figures & Tables(4)

Fig. 1. One-on-one damage probability curves of three kinds of samples.

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Fig. 2. Typical Z-scan curves for three kinds of samples. The dotted lines represent the theoretical fitting. The dots represent experimental data.

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Table 1. Transmittance Increase and Scattering Defects Decrease by Two Types of Laser Conditioning Procedures
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Table 1. Transmittance Increase and Scattering Defects Decrease by Two Types of Laser Conditioning Procedures
Procedure Scattering Decrease (%) Transmittance Increase (%)
Sub-ns laser conditioning 86.25 0.423
ns laser conditioning 81.91 0.438

Table 2. 4PA Coefficients of the Three Types of Samples
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Table 2. 4PA Coefficients of the Three Types of Samples
Sample $γ (10^{- 6} {cm}^{5} / {GW}^{3})$
Pristine $4.90 \pm 0.99$
ns laser conditioned $4.81 \pm 1.37$
Sub-ns laser conditioned $2.53 \pm 0.98$

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Xiaocong Peng, Yuanan Zhao, Yueliang Wang, Guohang Hu, Liujiang Yang, Jianda Shao. Absorption modification by laser irradiation in DKDP crystals[J]. Chinese Optics Letters, 2018, 16(5): 051601

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