Holographic metasurfaces for terahertz focusing: design, fabrication and experiment

Sergey A. Kuznetsov; Mikhail A. Astafyev; Miguel Navarro-CÃ­a; Alexander V. Gelfand; Andrey V. Arzhannikov; Manfred Thumm

META 2021, META'12

Sergey A. Kuznetsov, Mikhail A. Astafyev, Miguel Navarro-CÃa, Alexander V. Gelfand, Andrey V. Arzhannikov, Manfred Thumm

Last modified: 2012-01-04

Abstract

In this contribution we exploit the controlled reflection provided by metasurfaces together with holographic techniques to design non-profiled diffractive optical elements working at 334 GHz. The required metasurfaces are synthesized via an iterative algorithm, fabricated by photolithography and experimentally validated using a submillimeter-wave BWO spectrometer.

Keywords

metamaterials; artificial impedance surfaces; terahertz; diffractive elements; focusing; holography