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Title: Tunable infrared hyperbolic metamaterials with periodic indium-tin-oxide nanorods

Hyperbolic metamaterials (HMMs) are artificially engineered optical media that have been used for light confinement, excited state decay rate engineering, and subwavelength imaging, due to their highly anisotropic permittivity and with it the capability of supporting high- k modes. HMMs in the infrared range can be conceived for additional applications such as free space communication, thermal engineering, and molecular sensing. Here, we demonstrate infrared HMMs comprised of periodic indium-tin-oxide nanorod arrays (ITO-NRAs). We show that the ITO-NRA based HMMs exhibit a stationary epsilon-near-pole resonance in the near-infrared regime that is insensitive to the filling ratio, and a highly tunable epsilon-near-zero resonance in the mid-infrared range depending on the array periodicity. Experimental results are supported by finite-element simulations, in which the ITO-NRAs are treated both explicitly and as an effective hyperbolic media. Lastly, our work presents a low-loss HMM platform with favorable spectral tunability in the infrared range.
Authors:
ORCiD logo [1] ;  [2] ;  [3]
  1. Argonne National Lab. (ANL), Lemont, IL (United States)
  2. Northwestern Univ., Evanston, IL (United States)
  3. Argonne National Lab. (ANL), Lemont, IL (United States); Northwestern Univ., Evanston, IL (United States)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 111; Journal Issue: 2; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
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); USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1373388
Alternate Identifier(s):
OSTI ID: 1369484

Guo, Peijun, Chang, Robert P. H., and Schaller, Richard D.. Tunable infrared hyperbolic metamaterials with periodic indium-tin-oxide nanorods. United States: N. p., Web. doi:10.1063/1.4993426.
Guo, Peijun, Chang, Robert P. H., & Schaller, Richard D.. Tunable infrared hyperbolic metamaterials with periodic indium-tin-oxide nanorods. United States. doi:10.1063/1.4993426.
Guo, Peijun, Chang, Robert P. H., and Schaller, Richard D.. 2017. "Tunable infrared hyperbolic metamaterials with periodic indium-tin-oxide nanorods". United States. doi:10.1063/1.4993426. https://www.osti.gov/servlets/purl/1373388.
@article{osti_1373388,
title = {Tunable infrared hyperbolic metamaterials with periodic indium-tin-oxide nanorods},
author = {Guo, Peijun and Chang, Robert P. H. and Schaller, Richard D.},
abstractNote = {Hyperbolic metamaterials (HMMs) are artificially engineered optical media that have been used for light confinement, excited state decay rate engineering, and subwavelength imaging, due to their highly anisotropic permittivity and with it the capability of supporting high-k modes. HMMs in the infrared range can be conceived for additional applications such as free space communication, thermal engineering, and molecular sensing. Here, we demonstrate infrared HMMs comprised of periodic indium-tin-oxide nanorod arrays (ITO-NRAs). We show that the ITO-NRA based HMMs exhibit a stationary epsilon-near-pole resonance in the near-infrared regime that is insensitive to the filling ratio, and a highly tunable epsilon-near-zero resonance in the mid-infrared range depending on the array periodicity. Experimental results are supported by finite-element simulations, in which the ITO-NRAs are treated both explicitly and as an effective hyperbolic media. Lastly, our work presents a low-loss HMM platform with favorable spectral tunability in the infrared range.},
doi = {10.1063/1.4993426},
journal = {Applied Physics Letters},
number = 2,
volume = 111,
place = {United States},
year = {2017},
month = {7}
}

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