Strong Nonreciprocal Thermal Radiation Within Atmospheric Window With Lithography-Free Structure

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2024-10-29 DOI:10.1109/LPT.2024.3487769

Xin Cui;Yantong Shen;Liming Qian;Shixin Pei;Gaige Zheng

{"title":"Strong Nonreciprocal Thermal Radiation Within Atmospheric Window With Lithography-Free Structure","authors":"Xin Cui;Yantong Shen;Liming Qian;Shixin Pei;Gaige Zheng","doi":"10.1109/LPT.2024.3487769","DOIUrl":null,"url":null,"abstract":"Realizing a mid-infrared (mid-IR) nonreciprocal thermal emitter (NTE) within atmospheric window is a promising yet challenging task. Here we theoretically explore the enhanced contrast between emission and absorption of a resonant system with Weyl semimetal (WSM). We propose and present a lithography-free approach for manipulating the nonreciprocal thermal radiation (NTR), which also leads to near-zero emission and near-unity absorption simultaneously. It shows that the reciprocity between absorption and emission can be strongly broken with the difference of 0.973 at wavelength of \n<inline-formula> <tex-math>$13.6~\\mu m$ </tex-math></inline-formula>\n. By examining the impact of geometrical parameters, the structure manifests large parameter tolerance, which is advantageous for practical fabrication and application. The influence of incidence angle and azimuthal angle on the nonreciprocity has been also been investigated. The presented results offer new insights into engineering absorption and emission, that can facilitate the design of NTE in the mid-IR region.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"36 24","pages":"1445-1448"},"PeriodicalIF":2.3000,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Photonics Technology Letters","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10737435/","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

Realizing a mid-infrared (mid-IR) nonreciprocal thermal emitter (NTE) within atmospheric window is a promising yet challenging task. Here we theoretically explore the enhanced contrast between emission and absorption of a resonant system with Weyl semimetal (WSM). We propose and present a lithography-free approach for manipulating the nonreciprocal thermal radiation (NTR), which also leads to near-zero emission and near-unity absorption simultaneously. It shows that the reciprocity between absorption and emission can be strongly broken with the difference of 0.973 at wavelength of

$13.6~\mu m$

. By examining the impact of geometrical parameters, the structure manifests large parameter tolerance, which is advantageous for practical fabrication and application. The influence of incidence angle and azimuthal angle on the nonreciprocity has been also been investigated. The presented results offer new insights into engineering absorption and emission, that can facilitate the design of NTE in the mid-IR region.

查看原文本刊更多论文

无光刻结构大气窗口内的强非互惠热辐射

在大气窗口内实现中红外（mid-IR）非互易热发射器（NTE）是一项前景广阔而又充满挑战的任务。在此，我们从理论上探索了韦尔半金属（WSM）共振系统发射与吸收之间的增强对比。我们提出并展示了一种无需光刻的非互惠热辐射（NTR）操纵方法，它还能同时实现近零发射和近乎零的吸收。研究表明，在波长为 $13.6~\mu m$ 时，吸收与发射之间的互易性可以被强力打破，其差值为 0.973。通过研究几何参数的影响，该结构表现出较大的参数容差，有利于实际制造和应用。此外，还研究了入射角和方位角对非折射性的影响。这些结果为工程吸收和发射提供了新的见解，有助于设计中红外区域的 NTE。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.