Wave mixing in nominally undoped Sn2P2S6 at high light intensities
Wave mixing in nominally undoped Sn2P2S6 at high light intensities
复制标题
高光强度下名义上未掺杂的 Sn2P2S6 中的波混合
DOI：
10.1007/s00340-009-3405-3
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
S. Odoulov
中科院分区：
文献类型：
--
作者：
A. Shumelyuk;M. Wesner;M. Imlau;S. Odoulov
研究了sn2p2s6在Kr+激光波长为647 nm、泵浦光束强度为10 W/cm2时光折变响应的强度依赖性。当光栅间距为1 μm时，双光束耦合增益因子随强度的增加而显著增强，这主要归因于光诱导的有效阱密度的增加。在高强度下获得的大增益用于建立具有亚毫秒开关时间的双相位共轭镜。
The intensity dependence of the photorefractive response of Sn2P2S6is studied for the Kr+-laser wavelength of 647 nm and pump-beam intensities of up to 10 W/cm2. A considerable enhancement of the two-beam coupling gain factor with increasing intensity at a grating spacing of ≃1 μm is attributed to a light-induced increase of the effective trap density. The large gain reached at high intensities is applied for the build up of a double phase conjugate mirror with a sub-millisecond switch-on time.