Generalization of Second-Order Quasi-Phase Matching in Whispering Gallery Mode Resonators Using Berry Phase,ACS Photonics

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Generalization of Second-Order Quasi-Phase Matching in Whispering Gallery Mode Resonators Using Berry Phase
ACS Photonics ( IF 6.5 ) Pub Date : 2020-06-03 , DOI: 10.1021/acsphotonics.0c00393
Alejandro Lorenzo-Ruiz ₁ , Yoan Léger ₁

Affiliation

Second-order nonlinearities in whispering gallery mode resonators are highly investigated for their many applications such as wavelength converters, entangled photon sources, and generation of frequency combs. In such systems, depending on the material under scrutiny, the derivation of quasi-phase matching equations can lead to the appearance of additional quanta in the selection rule on the azimuthal confinement order. Here, we demonstrate that these additional quanta show up due to the Berry phase experienced by the transverse spin angular momentum components of the whispering gallery modes during their circulation within the resonator. We first detail the case of Zinc-blende materials and then generalize this theory to other crystal symmetries relevant for integrated photonics

中文翻译：

使用贝瑞相位的耳语画廊模式谐振器中二阶拟相位匹配的推广

耳语画廊模式谐振器中的二阶非线性因其许多应用（例如波长转换器，纠缠的光子源和频率梳的产生）而得到了深入研究。在这样的系统中，根据所检查的材料，准相位匹配方程的推导会导致在方位角限制顺序的选择规则中出现额外的量子。在这里，我们证明了这些额外的量子是由于回音壁模式的横向自旋角动量分量在谐振器内循环时经历的贝里相而出现的。我们首先详细介绍混合锌材料的情况，然后将这一理论推广到与集成光子学相关的其他晶体对称性

更新日期：2020-07-15

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