Ultra-flexible multiband terahertz metamaterial absorber for conformal geometry applications

Abstract

Standard optical lithography relying on clean room and microelectronic facilities is used to fabricate a thin-flexible metamaterial absorber, designed to operate at submillimeter wavelengths over the 0.1–1 THz frequency band. Large terahertz absorption has been demonstrated numerically and through experimental measurements with a maximum level of about 80%. We put emphasis in this present work on the use of single-sized “meta-cells” to achieve multiple absorption peaks. Furthermore, the use of a thin-flexible dielectric spacer makes it promising for stealth technology applications in order to disguise objects and make them less visible to radar and other detection methods.

© 2013 Optical Society of America

Ultra-flexible polarization-insensitive multiband terahertz metamaterial absorber

Xu Chen and Wenhui Fan
Appl. Opt. 54(9) 2376-2382 (2015)

Flexible metamaterial absorbers for stealth applications at terahertz frequencies

Krzysztof Iwaszczuk, Andrew C. Strikwerda, Kebin Fan, Xin Zhang, Richard D. Averitt, and Peter Uhd Jepsen
Opt. Express 20(1) 635-643 (2012)

Investigation of a broadband refractory metal metamaterial absorber at terahertz frequencies

Dan Hu, Hongyan Wang, Zhenjie Tang, and Xiwei Zhang
Appl. Opt. 55(19) 5257-5262 (2016)

Conformal metamaterial absorber for curved surface

Youngsoo Jang, Minyeong Yoo, and Sungjoon Lim
Opt. Express 21(20) 24163-24170 (2013)

Multi-band terahertz absorber exploiting graphene metamaterial

Qihui Zhou, Peiguo Liu, Li-an Bian, Xin Cai, and Hanqing Liu
Opt. Mater. Express 8(9) 2928-2940 (2018)