对红外非线性光学晶体Na2Ge2Se5的非线性性质进行了研究.计算了主平面内倍频调谐曲线,0.946 μm、1.064 μm、1.1319 μm泵浦情况下的倍频空间调谐曲线以及和频产生0.589μm激光的匹配曲线,并对计算结果进行了分析比较.所得结果可为Na2Ge2Se5晶体用于特定波长激光器,设计新波段提供理论依据.
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