Prism-enhanced wide-angle broadband nonreciprocal thermal radiation in a Weyl semimetal grating structure

Author:

Liu Zhicheng1,Li Haohang1,Xiao Jinjie1,Luo Fuyong1,Chen Junshen1,Cui Ruoheng1,Li Zhiqi1,Shen Jian,Li Chaoyang

Affiliation:

1. Hainan University

Abstract

Recent studies indicate that it is challenging to achieve both wide spectral and wide angular selectivity in existing structures for implementing infrared nonreciprocal thermal radiation. Therefore, it is essential to broaden the spectral coverage and angular range for different wavelengths. To overcome these limitations, a novel structure based on Weyl semimetal (WSM) and prism is designed in this study. The results show that strong nonreciprocity exceeding 0.8 is achieved in the wavelength range of 10.2-13.8µm at incident angles of 40°-80°. By studying the magnetic field distribution, the physical mechanism of broadband wide-angle nonreciprocal thermal radiation is revealed, which can be verified by impedance matching theory. Furthermore, the addition of a prism to the grating structure enhances nonreciprocal radiation and broadens the spectral range of strong nonreciprocal radiation.

Funder

Natural Science Foundation of Hainan Province

Publisher

Optica Publishing Group

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3