Dynamic grating recording in semiconductor CdF 2 : Ga, Y
Dynamic grating recording in semiconductor CdF 2 : Ga, Y
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半导体CdF 2 中的动态光栅记录：Ga、Y
DOI：
10.1364/josab.20.001905
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发表时间：
2003
影响因子：
1.9
通讯作者：
A. Ryskin
中科院分区：
文献类型：
--
作者：
Y. Uesu;K. Yasukawa;N. Saito;S. Itoh;S. Odoulov;K. Shcherbin;A. Ryskin
氟化镉与Ga和Y共掺杂是一种相位光栅记录介质。测量了三维光栅衍射效率与记录光强度、记录光偏振、条纹对比度和条纹空间频率的关系以及光栅的动态特性（光栅衰减时间和光栅积累时间）。该晶体表现为χ(3)介质，其折射率随线性强度变化，在室温下对中等强度的绿色记录光具有接近指数的累积衰减时间特性。
Cadmium fluoride codoped with Ga and Y is characterized as a medium for phase grating recording. The dependence of the three-dimensional grating diffraction efficiency on the intensity of the recording light, on the polarization of the recording light, on the fringe contrast, and on the spatial frequency of the fringe was measured together with the dynamic characteristics (grating decay time and grating buildup time). The crystal behaves as a χ(3) medium with its refractive-index change depending on linear intensity and with nearly exponential buildup–decay temporal characteristics for moderate intensities of the green recording light at room temperature.