Fast near-infrared self-pumped phase conjugation with photorefractive Sn 2 P 2 S 6
Fast near-infrared self-pumped phase conjugation with photorefractive Sn 2 P 2 S 6
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光折变 Sn 2 P 2 S 6 的快速近红外自泵浦相位共轭
DOI：
10.1364/josab.20.001241
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发表时间：
2003
影响因子：
1.9
通讯作者：
Y. Vysochanskii
中科院分区：
文献类型：
--
作者：
M. Jazbinšek;G. Montemezzani;P. Günter;A. Grabar;I. Stoika;Y. Vysochanskii
本文报道了一种光折变棕色Sn_2P_2S_6晶体，在近红外连续波段，环形腔自泵浦相位共轭响应时间的显著改善。棕色Sn 2 P2 S6是以SnI 2为传输剂，通过蒸气传输技术生长的。使用我们的Sn 2 P2 S6样品，可以在780 nm的波长下以1 W/cm 2的中等光强度实现低于50 ms的响应时间和25%的相位共轭反射率。我们表明，测量的反射率代表了环形腔排列透射率的极限。达到这一极限是可能的，因为在这种晶体中测得的18 cm-1的大的两波混频增益。
A significant improvement of the ring-cavity self-pumped phase conjugation response time in the near-infrared cw regime with a photorefractive brown Sn2P2S6 crystal is reported. Brown Sn2P2S6 is grown by the vapor-transport technique with SnI2 as the transport agent. With our Sn2P2S6 samples response times below 50 ms and phase-conjugate reflectivities of 25% can be achieved at a wavelength of 780 nm with a moderate light intensity of 1 W/cm2. We show that the measured reflectivity represents the limit given by the transmission of the ring-cavity arrangement. Reaching this limit is possible because of the large two-wave mixing gain of 18 cm-1 measured in this crystal.