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Proceedings Paper

Electronic and thermally tunable infrared metamaterial absorbers
Author(s): David Shrekenhamer; Joseph A. Miragliotta; Matthew Brinkley; Kebin Fan; Fenglin Peng; John A. Montoya; Sebastian Gauza; Shin-Tson Wu; Willie J. Padilla
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Paper 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.

Paper Details

Date Published: 16 September 2016
PDF: 7 pages
Proc. SPIE 9918, Metamaterials, Metadevices, and Metasystems 2016, 99180U (16 September 2016); doi: 10.1117/12.2238666
Show Author Affiliations
David Shrekenhamer, Johns Hopkins Univ. Applied Physics Lab., LLC (United States)
Joseph A. Miragliotta, Johns Hopkins Univ. Applied Physics Lab., LLC (United States)
Matthew Brinkley, Johns Hopkins Univ. Applied Physics Lab., LLC (United States)
Kebin Fan, Duke Univ. (United States)
Fenglin Peng, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
John A. Montoya, Duke Univ. (United States)
Sebastian Gauza, LC Matter Corp. (United States)
Shin-Tson Wu, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Willie J. Padilla, Duke Univ. (United States)


Published in SPIE Proceedings Vol. 9918:
Metamaterials, Metadevices, and Metasystems 2016
Nader Engheta; Mikhail A. Noginov; Nikolay I. Zheludev, Editor(s)

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