Second-harmonic generation in polycrystalline ZnSe in the absence of phase matching

IF 2.9 4区物理与天体物理 Q2 OPTICS

Journal of Nonlinear Optical Physics & Materials Pub Date : 2023-05-13 DOI:10.1142/s0218863523500601

R. Shahin, A. P. Savikin, O. V. Martynova, S. V. Kurashkin, D. V. Savin

引用次数: 0

Abstract

The work is devoted to the study of the second-harmonic generation (SHG) process as a result of random quasi-phase-matching of thulium laser radiation in ZnSe polycrystals. A linear dependence of the SHG efficiency on the nonlinear medium length has been observed in the experiment. The efficiencies of SHG in ZnSe polycrystals with average grain sizes from 35[Formula: see text][Formula: see text]m to 380[Formula: see text][Formula: see text]m were compared. The obtained results are in good agreement with the theory in the case of a Gaussian grain size distribution.

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无相匹配时多晶ZnSe中二次谐波的产生

本文研究了铥激光辐射在ZnSe多晶中随机准相位匹配导致的二次谐波产生过程。实验中观察到SHG效率与非线性介质长度呈线性关系。比较了平均晶粒尺寸为35[公式:见文]~ 380[公式:见文]m的ZnSe多晶中SHG的效率。在高斯粒度分布的情况下，所得结果与理论一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Nonlinear Optical Physics & Materials 物理-光学

CiteScore

3.00

自引率

48.10%

发文量

审稿时长

3 months

期刊介绍： This journal is devoted to the rapidly advancing research and development in the field of nonlinear interactions of light with matter. Topics of interest include, but are not limited to, nonlinear optical materials, metamaterials and plasmonics, nano-photonic structures, stimulated scatterings, harmonic generations, wave mixing, real time holography, guided waves and solitons, bistabilities, instabilities and nonlinear dynamics, and their applications in laser and coherent lightwave amplification, guiding, switching, modulation, communication and information processing. Original papers, comprehensive reviews and rapid communications reporting original theories and observations are sought for in these and related areas. This journal will also publish proceedings of important international meetings and workshops. It is intended for graduate students, scientists and researchers in academic, industrial and government research institutions.