This Letter describes the fabrication of a microelectromechanical systems (MEMS) bimaterial terahertz (THz) sensor operating at 3.8 THz. The incident THz radiation is absorbed by a metamaterial structure integrated with the bimaterial. The absorber was designed with a resonant frequency matching the quantum cascade laser illumination source while simultaneously providing structural support, des...

Related Articles New equipment for microwave electric field visualization Rev. Sci. Instrum. 83, 074704 (2012) Frequency-dispersive resistance of high impedance surface absorber with trapezoid-coupling pattern J. Appl. Phys. 112, 014106 (2012) Extremely high extinction ratio terahertz broadband polarizer using bilayer subwavelength metal wire-grid structure Appl. Phys. Lett. 101, 011101 (2012) ...

Broadband absorber at high terahertz frequency is highly required for applications in imaging, detecting, electromagnetic stealth. Although intensive investigations of the broadband have been taken, challenges still exist both design and fabrication an ultra-broadband frequency. Herein, a three-layered structure metamaterial has designed to realize covering 3.94–9.98 THz (6.04 THZ) absorption a...

This paper reports on a numerical study of the six-band metamaterial absorber composed of two alternating stack of metallic-dielectric layers on top of a continuous metallic plane. Six obvious resonance peaks with high absorption performance (average larger than 99.37%) are realized. The first, third, fifth, and the second, fourth, sixth resonance absorption bands are attributed to the multiple...

A quad-band near-perfect terahertz absorber employing an asymmetric metamaterial element is demonstrated.

The impedance matching in metamaterial perfect absorbers has been believed to involve and rely on magnetic resonant response, with a direct evidence from the anti-parallel directions of surface currents in the metal structures. Here we present a different theoretical interpretation based on interferences, which shows that the two layers of metal structure in metamaterial absorbers are linked on...

View Online Nano-Micro Conf., 2017, 1, 01009 | 1 Published by Nature Research Society http://nrs.org Broadband terahertz absorber based on sinusoidally-patterned graphene Longfang Ye,* Yao Chen Institute of Electromagnetics and Acoustics, and Department of Electronic Science, Xiamen University, Xiamen 361005, China Corresponding Author. Email: [email protected] Received: 25 May 2017, Accepted: 13...