High-performance absorber with substitutable materials for short-wave infrared sensing

The optical absorption device plays a crucial role as a component of the infrared astronomical telescope and possesses a significant impact on astronomical observations. A simple metamaterial absorber with substitutable middle materials is made for short-wave infrared sensing. The absorber is design...

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Main Authors: Fengjie Li, Shang Wang, Zongtao Chi, Tiqiang Zhang, Ruitao Yu, Bin Wang, Ning Li
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-03-01
Series:Frontiers in Astronomy and Space Sciences
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fspas.2024.1374951/full
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author Fengjie Li
Shang Wang
Zongtao Chi
Tiqiang Zhang
Ruitao Yu
Bin Wang
Ning Li
author_facet Fengjie Li
Shang Wang
Zongtao Chi
Tiqiang Zhang
Ruitao Yu
Bin Wang
Ning Li
author_sort Fengjie Li
collection DOAJ
description The optical absorption device plays a crucial role as a component of the infrared astronomical telescope and possesses a significant impact on astronomical observations. A simple metamaterial absorber with substitutable middle materials is made for short-wave infrared sensing. The absorber is designed as a hollow square column, using a patterning approach for the top-layer structure of metamaterials. The absorption characteristics are verified using the impedance matching method, which involves extracting S-parameters and then performing inverse calculations to determine the absorber’s equivalent impedance. The result shows the highest absorption peak is at 3.25 μm, reaching 99.71%, with an impressive average absorption rate of 99.01% between 1.52 and 3.66 μm. The results demonstrate that this absorber shows polarization insensitivity while maintaining high absorption even at large angles of incidence. The distribution of the electromagnetic field within the absorber, the electromagnetic losses within individual layers, and their impact on the absorptive performance are analyzed in detail. Polarization angles, transverse magnetic polarization, and transverse electric polarization are further explored. The parameters of each layer have been discussed. An investigation of the intermediate dielectric layer has been conducted. The proposed absorber shows the potential to achieve exceptional absorption performance under various dielectric conditions, rendering it a promising candidate for use in astronomical observation, medical tests, infrared detection, invisible short-wave infrared systems, radar and various optical devices.
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spelling doaj.art-4872ebffb867412fa62340a7b6211d272024-03-06T04:24:45ZengFrontiers Media S.A.Frontiers in Astronomy and Space Sciences2296-987X2024-03-011110.3389/fspas.2024.13749511374951High-performance absorber with substitutable materials for short-wave infrared sensingFengjie Li0Shang Wang1Zongtao Chi2Tiqiang Zhang3Ruitao Yu4Bin Wang5Ning Li6College of Electronic Information, School of Basic Medicine, Micro-Nano Technology College, Qingdao University, Qingdao, ChinaCollege of Science, North China Institute of Science and Technology, Yanjiao, ChinaCollege of Electronic Information, School of Basic Medicine, Micro-Nano Technology College, Qingdao University, Qingdao, ChinaCollege of Electronic Information, School of Basic Medicine, Micro-Nano Technology College, Qingdao University, Qingdao, ChinaCollege of Electronic Information, School of Basic Medicine, Micro-Nano Technology College, Qingdao University, Qingdao, ChinaCollege of Electronic Information, School of Basic Medicine, Micro-Nano Technology College, Qingdao University, Qingdao, ChinaCollege of Electronic Information, School of Basic Medicine, Micro-Nano Technology College, Qingdao University, Qingdao, ChinaThe optical absorption device plays a crucial role as a component of the infrared astronomical telescope and possesses a significant impact on astronomical observations. A simple metamaterial absorber with substitutable middle materials is made for short-wave infrared sensing. The absorber is designed as a hollow square column, using a patterning approach for the top-layer structure of metamaterials. The absorption characteristics are verified using the impedance matching method, which involves extracting S-parameters and then performing inverse calculations to determine the absorber’s equivalent impedance. The result shows the highest absorption peak is at 3.25 μm, reaching 99.71%, with an impressive average absorption rate of 99.01% between 1.52 and 3.66 μm. The results demonstrate that this absorber shows polarization insensitivity while maintaining high absorption even at large angles of incidence. The distribution of the electromagnetic field within the absorber, the electromagnetic losses within individual layers, and their impact on the absorptive performance are analyzed in detail. Polarization angles, transverse magnetic polarization, and transverse electric polarization are further explored. The parameters of each layer have been discussed. An investigation of the intermediate dielectric layer has been conducted. The proposed absorber shows the potential to achieve exceptional absorption performance under various dielectric conditions, rendering it a promising candidate for use in astronomical observation, medical tests, infrared detection, invisible short-wave infrared systems, radar and various optical devices.https://www.frontiersin.org/articles/10.3389/fspas.2024.1374951/fullinfraredabsorberbroadbandopticalastronomical
spellingShingle Fengjie Li
Shang Wang
Zongtao Chi
Tiqiang Zhang
Ruitao Yu
Bin Wang
Ning Li
High-performance absorber with substitutable materials for short-wave infrared sensing
Frontiers in Astronomy and Space Sciences
infrared
absorber
broadband
optical
astronomical
title High-performance absorber with substitutable materials for short-wave infrared sensing
title_full High-performance absorber with substitutable materials for short-wave infrared sensing
title_fullStr High-performance absorber with substitutable materials for short-wave infrared sensing
title_full_unstemmed High-performance absorber with substitutable materials for short-wave infrared sensing
title_short High-performance absorber with substitutable materials for short-wave infrared sensing
title_sort high performance absorber with substitutable materials for short wave infrared sensing
topic infrared
absorber
broadband
optical
astronomical
url https://www.frontiersin.org/articles/10.3389/fspas.2024.1374951/full
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