Electronic and thermally tunable infrared metamaterial absorbers


Conference Paper

Copyright © 2016 SPIE. 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.

Full Text

Duke Authors

Cited Authors

  • Shrekenhamer, D; Miragliotta, JA; Brinkley, M; Fan, K; Peng, F; Montoya, JA; Gauza, S; Wu, ST; Padilla, WJ

Published Date

  • January 1, 2016

Published In

Volume / Issue

  • 9918 /

Electronic International Standard Serial Number (EISSN)

  • 1996-756X

International Standard Serial Number (ISSN)

  • 0277-786X

International Standard Book Number 13 (ISBN-13)

  • 9781510602274

Digital Object Identifier (DOI)

  • 10.1117/12.2238666

Citation Source

  • Scopus