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首页> 外文期刊>Optics Letters >Saturation effect and forward-dominant second-harmonic generation in single-defect photonic crystals with dual localizations
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Saturation effect and forward-dominant second-harmonic generation in single-defect photonic crystals with dual localizations

机译:具有双定位的单缺陷光子晶体的饱和效应和前向优势次谐波产生

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摘要

We study the forward-dominant output of second-harmonic generation (SHG) in single-defect and dual-localized photonic crystals within the saturation limit. We propose that an asymmetric structure can be used to improve the performance of the enhanced SHG. We get two empirical expressions for the total saturation SHG efficiency and the forward factor and provide a reasonable explanation. The theoretical results predict a nearly 100percent conversion efficiency and a nearly 100percent forward output. Our work is very valuable for designing nonlinear photonic devices. As a test, a practical asymmetrical structure is presented.
机译:我们研究了饱和极限内单缺陷和双局部光子晶体中次谐波产生(SHG)的前向主导输出。我们建议可以使用非对称结构来提高增强型SHG的性能。对于总饱和SHG效率和正向因子,我们得到两个经验表达式,并提供了合理的解释。理论结果预测,转换效率接近100%,正向输出接近100%。我们的工作对于设计非线性光子器件非常有价值。作为测试,提出了一种实用的不对称结构。

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