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Proceedings Article

Electronic and thermally tunable infrared metamaterial absorbers

[+] Author Affiliations
David Shrekenhamer, Joseph A. Miragliotta, Matthew Brinkley

Johns Hopkins Univ. Applied Physics Lab., LLC (United States)

Kebin Fan, John A. Montoya, Willie J. Padilla

Duke Univ. (United States)

Fenglin Peng, Shin-Tson Wu

CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)

Sebastian Gauza

LC Matter Corp. (United States)

Proc. SPIE 9918, Metamaterials, Metadevices, and Metasystems 2016, 99180U (September 16, 2016); doi:10.1117/12.2238666
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From Conference Volume 9918

  • Metamaterials, Metadevices, and Metasystems 2016
  • Nader Engheta; Mikhail A. Noginov; Nikolay I. Zheludev
  • San Diego, California, United States | August 28, 2016

abstract

In this paper, we report a computational and experimental study using tunable infrared (IR) metamaterial absorbers (MMAs) to demonstrate frequency tunable (7%) and amplitude modulation (61%) designs. The dynamic tuning of each structure was achieved through the addition of an active material—liquid crystals (LC) or vanadium dioxide (VO2)--within the unit cell of the MMA architecture. In both systems, an applied stimulus (electric field or temperature) induced a dielectric change in the active material and subsequent variation in the absorption and reflection properties of the MMA in the mid- to long-wavelength region of the IR (MWIR and LWIR, respectively). These changes were observed to be reversible for both systems and dynamic in the LC-based structure. © (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

David Shrekenhamer ; Joseph A. Miragliotta ; Matthew Brinkley ; Kebin Fan ; Fenglin Peng, et al.
" Electronic and thermally tunable infrared metamaterial absorbers ", Proc. SPIE 9918, Metamaterials, Metadevices, and Metasystems 2016, 99180U (September 16, 2016); doi:10.1117/12.2238666; http://dx.doi.org/10.1117/12.2238666


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