全介电元表面面内和面外不对称诱导的连续体中的准约束态

IF 1.5 4区物理与天体物理 Q3 PHYSICS, APPLIED

Japanese Journal of Applied Physics Pub Date : 2024-09-16 DOI:10.35848/1347-4065/ad74c4

Yiran Zhou, Bo Ni, Haibin Ni, Xiaoyan Zhou, Lingsheng Yang and Jianhua Chang

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引用次数: 0

摘要

在本文中，我们提出了一种由蚀刻方形硅衬底的一对方形孔组成的周期性结构，以实现 1524 纳米波长处的高 Q 值准 BIC 共振峰。仿真结果表明，激发的准 BIC 的 Q 因子可达 12,660。多极分解和近场分布表明，方形蚀刻孔结构的准 BIC 主要由磁偶极子、电四极子和磁四极子主导。当结构参数向其他方向移动时，或者当方形孔旋转或变为圆形时，这种准 BIC 显示出良好的鲁棒性。

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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Quasi-bound states in the continuum induced by in-plane and out-of-plane asymmetry in all-dielectric metasurfaces

In this paper, we propose a periodic structure consisting of a pair of square holes etched through square silicon substrates to achieve a high-Q quasi-BIC resonance peak at 1524 nm. The simulation results indicate that the Q factor of the excited quasi-BIC can reach 12,660. Multipole decomposition and near-field distribution show that the quasi-BIC of the square etched hole structure is primarily dominated by magnetic dipoles, electric quadrupoles, and magnetic quadrupoles. When structural parameters shift in other directions, or when the square hole is rotated or changed to a circle, this quasi-BIC demonstrates good robustness.

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来源期刊

Japanese Journal of Applied Physics 物理-物理：应用

CiteScore

3.00

自引率

26.70%

发文量

818

审稿时长

3.5 months

期刊介绍： The Japanese Journal of Applied Physics (JJAP) is an international journal for the advancement and dissemination of knowledge in all fields of applied physics. JJAP is a sister journal of the Applied Physics Express (APEX) and is published by IOP Publishing Ltd on behalf of the Japan Society of Applied Physics (JSAP). JJAP publishes articles that significantly contribute to the advancements in the applications of physical principles as well as in the understanding of physics in view of particular applications in mind. Subjects covered by JJAP include the following fields: • Semiconductors, dielectrics, and organic materials • Photonics, quantum electronics, optics, and spectroscopy • Spintronics, superconductivity, and strongly correlated materials • Device physics including quantum information processing • Physics-based circuits and systems • Nanoscale science and technology • Crystal growth, surfaces, interfaces, thin films, and bulk materials • Plasmas, applied atomic and molecular physics, and applied nuclear physics • Device processing, fabrication and measurement technologies, and instrumentation • Cross-disciplinary areas such as bioelectronics/photonics, biosensing, environmental/energy technologies, and MEMS