具有多表面晶格共振的可调谐高q等离子体超表面(特邀)

Progress in Electromagnetics Research Symposium : [proceedings]. Progress in Electromagnetics Research Symposium Pub Date : 2021-01-01 DOI:10.2528/pier21112006

Nanxuan Wu, Yiyun Zhang, Hongbin Ma, Hongsheng Chen, Haoliang Qian

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引用次数: 9

摘要

在许多光与物质相互作用的应用中，要求微纳光电子器件具有高效率和多工作波长的能力，这对表面等离子体来说是一个挑战，因为表面等离子体具有较高的本质损耗和较大的色散。为了跨越这些障碍，提出了一种结合高Q因子(最高Q > 800)和多个共振波长的等离子体超表面，通过在晶格模式中排列阶梯金字塔单元。由于非线性频率变换具有较强的可调性，因此建立了不同的数值关系。并通过数值模拟证明了其具有高辐射效率(> 50%)和大局域光密度(> 104)的特性。这种可调谐的高q超表面可以应用于量子非线性过程，使强光-物质相互作用器件成为现实。

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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TUNABLE HIGH-Q PLASMONIC METASURFACE WITH MULTIPLE SURFACE LATTICE RESONANCES (INVITED)

Micro-nano opto-electronic devices are demanded to be highly efficient and capable of multiple working wavelengths in several light-matter interaction applications, which is a challenge to surface plasmonics owing to the relatively higher intrinsic loss and larger dispersion. To cross the barriers, a plasmonic metasurface combining both high Q-factors (highest Q > 800) and multiple resonant wavelengths is proposed by arranging step-staged pyramid units in lattice modes. Different numerical relations for nonlinear frequency conversions have been constructed because of its strong tunability. Also, characteristics of high radiation efficiency (> 50%) and large localized optical density of state (> 104) have been proved through the numerical simulation. Such tunable high-Q metasurface can be implemented to quantum nonlinear process and enable the strong light-matter interaction devices into reality.

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Progress in Electromagnetics Research Symposium : [proceedings]. Progress in Electromagnetics Research Symposium

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