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arXiv 1802.10477physics.optics
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非线性超表面二次谐波的均匀化和散射分析

Homogenization and Scattering Analysis of Second-Harmonic Generation in Nonlinear Metasurfaces

Karim Achouri, Gabriel D. Bernasconi, Jérémy Butet, Olivier J. F. Martin

摘要:

我们提出了一个广泛的讨论二阶非线性元表面的均匀化和散射分析。我们的发展是基于广义片过渡条件(GSTCs),这是用来模拟非线性超颖表面的电磁响应。GSTC在频域中求解,假设一个未耗尽的泵制度,并在时域中,假设色散的材料属性,但可能耗尽的泵制度。基于这两种建模方法,我们导出了一般的二次谐波无反射和无透射条件以及非对称反射和透射条件。我们还讨论和澄清有关非线性超颖表面的非互易散射的概念。

英文摘要:

We propose an extensive discussion on the homogenization and scattering analysis of second-order nonlinear metasurfaces. Our developments are based on the generalized sheet transition conditions (GSTCs) which are used to model the electromagnetic responses of nonlinear metasurfaces. The GSTCs are solved both in the frequency domain, assuming an undepleted pump regime, and in the time-domain, assuming dispersionless material properties but a possible depleted pump regime. Based on these two modeling approaches, we derive the general second-harmonic reflectionless and transmissionless conditions as well as the conditions of asymmetric reflection and transmission. We also discuss and clarify the concept of nonreciprocal scattering pertaining to nonlinear metasurfaces.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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