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Approximate Technique for Solution of the Problem of Second Harmonic Generation in Nonlinear Crystals: Part 1
Atmospheric and Oceanic Optics ( IF 0.9 ) Pub Date : 2020-06-19 , DOI: 10.1134/s1024856020030069 V. V. Kolosov , V. O. Troitskii
中文翻译:
解决非线性晶体二次谐波产生问题的近似技术:第1部分
更新日期:2020-06-19
Atmospheric and Oceanic Optics ( IF 0.9 ) Pub Date : 2020-06-19 , DOI: 10.1134/s1024856020030069 V. V. Kolosov , V. O. Troitskii
Abstract
A technique is suggested for an approximate solution of the set of equations responsible for second harmonic generation in nonlinear uniaxial crystals. The algorithm of this technique is reduced to numerical calculation of a triple integral. The study consists of two parts. In the first part, two approximations are considered, which allow a reduction of nearly two orders of magnitude in the computation time of double integrals over the transverse coordinates. In the second part, we discuss an approximate technique for estimating the power of interacting waves, which also allows a further reduction in the computation time by an order of magnitude by reducing minimum number of required steps in the recurrence process. The test results show that the use of these approximations can decrease the accuracy of the solution of the nonlinear problem but can keep the errors acceptably low.中文翻译:
解决非线性晶体二次谐波产生问题的近似技术:第1部分