Highly reflective and high-Q thin resonant subwavelength gratings

IF 4.6 Q1 OPTICS Journal of Physics-Photonics Pub Date : 2024-08-27 DOI:10.1088/2515-7647/ad70e7
Gurpreet Singh, Trishala Mitra, Søren P Madsen, Aurélien Dantan
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引用次数: 0

Abstract

We theoretically investigate the design of thin subwavelength gratings possessing high-reflectivity and high-Q resonances when illuminated at normal incidence by a Gaussian beam. We compare the performances of single-period and dual-period rectangular gratings using finite element method-based optimization and predict a close to two orders of magnitude improvement (×90) in their transmission loss-linewidth product, which is the relevant figure of merit for e.g. resonant mirror-based microcavity applications.
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高反射和高 Q 值薄型谐振亚波长光栅
我们从理论上研究了薄亚波长光栅的设计,当高斯光束法线入射时,光栅具有高反射率和高Q值共振。我们使用基于有限元法的优化方法比较了单周期和双周期矩形光栅的性能,并预测它们的传输损耗线宽乘积可提高近两个数量级(×90),而这正是基于谐振镜的微腔等应用的相关优点。
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来源期刊
CiteScore
10.70
自引率
0.00%
发文量
27
审稿时长
12 weeks
期刊最新文献
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