Design, fabrication and characterization of tunable perfect absorber on flexible substrate


Conference Paper

This paper reports our recent progress on a highly flexible dynamic perfect absorber at terahertz (THz) frequencies. Metamaterial unit cells were patterned on thin GaAs patches, which were fashioned in an array on a 5μm polyimide substrate via transfer printing technique, and the backside of the substrate was coated with gold film as ground plane. Optical-pump THz-probe reflection measurements show that the absorptivity at resonance frequency of 1.58THz can be tuned up to 57% through photo-excitation of free carriers in GaAs layers in presence of 800nm pump beam. Our flexible tunable MM perfect absorber exhibits potential applications in energy harvesting, imaging and stealth coating. © 2014 IEEE.

Full Text

Cited Authors

  • Zhao, X; Fan, K; Zhang, J; Seren, HR; Metcalfe, GD; Wraback, M; Averitt, RD; Zhang, X

Published Date

  • January 1, 2014

Published In

Start / End Page

  • 84 - 87

International Standard Serial Number (ISSN)

  • 1084-6999

International Standard Book Number 13 (ISBN-13)

  • 9781479935086

Digital Object Identifier (DOI)

  • 10.1109/MEMSYS.2014.6765579

Citation Source

  • Scopus