高通量条件下KDP晶体三倍频参数的优化
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摘要: 采用四阶龙格-库塔（R-K）数值计算方法,以Ⅰ／Ⅱ角度失谐和Ⅱ／Ⅱ偏振失配两种三倍频方案为例，给出了入射基频光为平面方波，功率密度5GW/cm2的情况下 ，KDP晶体三倍频参数的优化结果。Abstract: In third harmonic generation, it is v ery important to select the parameters of the generator. In this paper, we optim ized the thickness of the doublers and triplers, mismatch angles and other param eters of Ⅰ／Ⅱ angledetuning and Ⅱ／Ⅱ polarizationmismatch third harmonic generation schemes by numerical calculation way. We also give the tripling effi ciency curves which the pulse shape of the input intensity is flat in space and time around 5.0 GW/cm2.
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Key words:
- angledetuning /
- polarizationmismatch /
- the thickness of the crystal
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