High-Q resonances in terahertz all-silicon metasurface with imperforated air-hole array

IF 3.3 2区物理与天体物理 Q2 OPTICS

Chinese Optics Letters Pub Date : 2023-01-01 DOI:10.3788/col202321.113601

Qing Wang, Pengfei Wang, Jianjun Liu, Fangzhou Shu, Guiming Pan, Zhongwei Jin, Xufeng Jing, Zhi Hong

引用次数: 0

Abstract

We propose and experimentally demonstrate a high quality (Q)-factor all-silicon bound state in the continuum (BIC) metasurface with an imperforated air-hole array. The metasurface supports two polarization-insensitive BICs originated from guided mode resonances (GMRs) in the frequency range of 0.4 to 0.6 THz, and the measured Q-factors of the two GMRs are as high as 334 and 152, respectively. In addition, the influence of the thickness of the silicon substrate on the two resonances is analyzed in detail. The proposed all-silicon THz metasurface has great potential in the design and application of high-Q metasurfaces.

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无孔空气孔阵列的太赫兹全硅超表面高q共振

我们提出并实验证明了一种高质量(Q)因子的全硅结合态的连续介质(BIC)超表面与不穿孔的空气孔阵列。该超表面支持来自0.4 ~ 0.6 THz频率范围内导模共振(GMRs)的两种极化不敏感bic，两种GMRs的测量q因子分别高达334和152。此外，还详细分析了硅衬底厚度对两种共振的影响。所提出的全硅太赫兹超表面在高q超表面的设计和应用中具有很大的潜力。

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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来源期刊

Chinese Optics Letters 物理-光学

CiteScore

5.60

自引率

20.00%

发文量

180

审稿时长

2.3 months

期刊介绍： Chinese Optics Letters (COL) is an international journal aimed at the rapid dissemination of latest, important discoveries and inventions in all branches of optical science and technology. It is considered to be one of the most important journals in optics in China. It is collected by The Optical Society (OSA) Publishing Digital Library and also indexed by Science Citation Index (SCI), Engineering Index (EI), etc. COL is distinguished by its short review period (~30 days) and publication period (~100 days). With its debut in January 2003, COL is published monthly by Chinese Laser Press, and distributed by OSA outside of Chinese Mainland.