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物理学报  2007 

Investigating of SRS and luminescence of ZnWO4 crystals
钨酸锌晶体的受激拉曼散射和光致发光研究

Keywords: crystals,zinc tungstate,SRS,scintillator
晶体
,钨酸锌,受激拉曼散射,闪烁体

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Abstract:

The stimulated Raman scattering (SRS) and luminescence spectra of ZnWO_4 crystals were investigated using 532nm laser excitation at room temperature. It was found that the first order (558.7nm) and second order (588.6nm) of SRS have 130 and 77cm~ -1 line widths and the pump threshold at 558.7nm is 6.8mJ. The luminescence spectrum of ZnWO_4 crystals under 532nm laser excitation has the peculiarity of having the band structure composed of three-Gaussian components. The photoluminescence spectrum shows broadband emission from 400nm to 650nm peaked about 472.0nm, which is attributed to the radiative transitions between tungsten and oxygen.

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