High-performance spectrally selective pyroelectric detection of millimeter and submillimeter waves using ultra-thin metasurface absorbers

S.A Kuznetsov,N.A Nikolaev,A.V Arzhannikov

doi:10.1051/epjconf/201714902018

Abstract

High-performance spectrally selective pyroelectric detection of millimeter and submillimeter waves using ultra-thin metasurface absorbers

Highlights

In the last decade, following a rapid progress in millimeter-wave (MMW) and submillimeter-wave (SMMW) technologies [1, 2], a lot of efforts are undertaken in device physics to improve conventional or realize novel instrumental solutions using metamaterials
It is worth noting that thinning the metasurface absorbers (MSAs) inevitably leads to narrowing its fractional absorption bandwidth 'O / O.This conclusion stems from the fundamental Rozanov restriction on the thickness of an arbitrary metal-backed magnetodielectric absorber [6]:
The MSA is realized as a singlelayer frequency selective surface (FSS) of a capacitive type patterned on a thin dielectric slab with uniform back metallization (“ground plane” or GP) (Fig. 1,a)

Summary

Introduction

In the last decade, following a rapid progress in millimeter-wave (MMW) and submillimeter-wave (SMMW) technologies [1, 2], a lot of efforts are undertaken in device physics to improve conventional or realize novel instrumental solutions using metamaterials. Arranged in compact spectrometric arrays with tailored spectral and polarization responsivities, the MSA-based detectors do not necessitate the use of external dispersive elements to measure radiation spectra and polarization, as well as to realize wavelength- and polarization-sensitive imaging [5].

Results

Conclusion