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  • Published Article: Wavelength-selective mid-infrared metamaterial absorbers with multiple tungsten cross resonators

Title: Wavelength-selective mid-infrared metamaterial absorbers with multiple tungsten cross resonators

Wavelength-selective metamaterial absorbers in the mid-infrared range are demonstrated by using multiple tungsten cross resonators. By adjusting the geometrical parameters of cross resonators in single-sized unit cells, near-perfect absorption with single absorption peak tunable from 3.5 μm to 5.5 μm is realized. The combination of two, three, or four cross resonators of different sizes in one unit cell enables broadband near-perfect absorption at mid-infrared range. The obtained absorption spectra exhibit omnidirectiona lity and weak dependence on incident polarization. The underlying mechanism of near-perfect absorption with cross resonators is further explained by the optical mode analysis, dispersion relation and equivalent RLC circuit model. Furthermore, thermal analysis is performed to study the heat generation and temperature increase in the cross resonator absorbers, while the energy conversion efficiency is calculated for the thermophotovolta ic system made of the cross resonator thermal emitters and low-bandgap semiconductors.
Authors:
 [1] ;  [2] ;  [2] ;  [1] ;  [1]
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  1. Missouri Univ. of Science and Technology, Rolla, MO (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Published Article
Journal Name:
Optics Express
Additional Journal Information:
Journal Volume: 26; Journal Issue: 5; Journal ID: ISSN 1094-4087
Publisher:
Optical Society of America (OSA)
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Scientific User Facilities Division; National Science Foundation (NSF); US Department of the Navy, Office of Naval Research (ONR)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; absorption; resonance; infrared
OSTI Identifier:
1422450
Alternate Identifier(s):
OSTI ID: 1477174
Citation Formats
Li, Zhigang, Stan, Liliana, Czaplewski, David A., Yang, Xiaodong, and Gao, Jie. Wavelength-selective mid-infrared metamaterial absorbers with multiple tungsten cross resonators. United States: N. p., Web. doi:10.1364/OE.26.005616.
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Li, Zhigang, Stan, Liliana, Czaplewski, David A., Yang, Xiaodong, & Gao, Jie. Wavelength-selective mid-infrared metamaterial absorbers with multiple tungsten cross resonators. United States. doi:10.1364/OE.26.005616.
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Li, Zhigang, Stan, Liliana, Czaplewski, David A., Yang, Xiaodong, and Gao, Jie. 2018. "Wavelength-selective mid-infrared metamaterial absorbers with multiple tungsten cross resonators". United States. doi:10.1364/OE.26.005616.
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@article{osti_1422450,
title = {Wavelength-selective mid-infrared metamaterial absorbers with multiple tungsten cross resonators},
author = {Li, Zhigang and Stan, Liliana and Czaplewski, David A. and Yang, Xiaodong and Gao, Jie},
abstractNote = {Wavelength-selective metamaterial absorbers in the mid-infrared range are demonstrated by using multiple tungsten cross resonators. By adjusting the geometrical parameters of cross resonators in single-sized unit cells, near-perfect absorption with single absorption peak tunable from 3.5 μm to 5.5 μm is realized. The combination of two, three, or four cross resonators of different sizes in one unit cell enables broadband near-perfect absorption at mid-infrared range. The obtained absorption spectra exhibit omnidirectiona lity and weak dependence on incident polarization. The underlying mechanism of near-perfect absorption with cross resonators is further explained by the optical mode analysis, dispersion relation and equivalent RLC circuit model. Furthermore, thermal analysis is performed to study the heat generation and temperature increase in the cross resonator absorbers, while the energy conversion efficiency is calculated for the thermophotovolta ic system made of the cross resonator thermal emitters and low-bandgap semiconductors.},
doi = {10.1364/OE.26.005616},
journal = {Optics Express},
number = 5,
volume = 26,
place = {United States},
year = {2018},
month = {2}
}
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