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Temperature Dependence Of Raman Scattering In Kdp Crystal

Xiangxu Chai,Xinguang Xu,Fuquan Li,Bin Feng,Qihua Zhu,Shenglai Wang,Lisong Zhang,Hailiang Zhou

XX INTERNATIONAL SYMPOSIUM ON HIGH-POWER LASER SYSTEMS AND APPLICATIONS 2014（2015）

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Abstract
We measured the Raman spectra of the nu(1) mode in KDP crystal over the temperature range from 285.3 K to 345.2 K. And the temperature dependence of the Raman characteristics (Raman shift, FWHM and intensity) were well analyzed. The result reveals that with temperature increasing the nu(1) mode displays a red-shift and the linewidth broadens, but the scattering intensity shows no obvious tendency. The stimulated Raman scattering (SRS) gain coefficient of the nu(1) mode decrease about 12% at 345.2 K.
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Key words
KDP crystal, Raman scattering, temperature dependence, SRS gain coefficient
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