二次谐波生成法反演非对称超表面的精密纳米控制器

2022 20th International Conference on Optical Communications and Networks (ICOCN) Pub Date : 2022-08-12 DOI:10.1109/ICOCN55511.2022.9901241

Yiwen Liu, L. Gui, Kun Xu

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引用次数: 0

摘要

在传感和测量等应用中，在纳米尺度上实现几何参数是非常需要的。我们证明了二次谐波产生(SHG)可以作为一种非常有用的工具，以高灵敏度定量反映法诺超表面的结构不对称性。纳米棒的水平位移只有10纳米，就会导致我们提出的SHG强度比发生13%的变化，这是可以明显观察到的。

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Precise Nanoruler for Retrieving Asymmetry of Fano-Resonant Metasurfaces by Second-Harmonic Generation

Achieving geometric parameters at the nanoscale is highly desired in the applications including sensing and measurement. We demonstrate that second-harmonic generation (SHG) can be a very useful tool to quantitatively reflect the structural asymmetry of Fano metasurfaces with high sensitivity. A horizontal shift of the nanobar as small as 10 nm leads to a 13% change in our proposed SHG intensity ratio, which is clearly observable.

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2022 20th International Conference on Optical Communications and Networks (ICOCN)

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