Tunable infrared hyperbolic metamaterials with periodic indium-tin-oxide nanorods
- Argonne National Lab. (ANL), Lemont, IL (United States)
- Northwestern Univ., Evanston, IL (United States)
- Argonne National Lab. (ANL), Lemont, IL (United States); Northwestern Univ., Evanston, IL (United States)
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.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22), Scientific User Facilities Division; National Science Foundation (NSF); USDOE
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1373388
- Alternate ID(s):
- OSTI ID: 1369484
- Journal Information:
- Applied Physics Letters, Vol. 111, Issue 2; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Hyperbolic metamaterials: From dispersion manipulation to applications
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journal | February 2020 |
Study of cavity-enhanced dipole emission on a hyperbolic metamaterial slab
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journal | January 2019 |
Optics with hyperbolic materials [Invited]
|
journal | January 2019 |
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