High temperature metamaterial terahertz quantum detector

TL;DR

This paper presents a high-temperature terahertz quantum detector utilizing a three-dimensional metamaterial with an LC resonator design, achieving improved efficiency and operation at elevated temperatures.

Contribution

Introduction of a novel metamaterial-based terahertz detector with enhanced temperature performance and efficient light-matter interaction.

Findings

Operates at higher temperatures than conventional detectors.

Uses ultra-subwavelength capacitors for strong light-matter coupling.

Achieves increased collection efficiency for THz radiation.

Abstract

We demonstrate a high temperature performance quantum detector of Terahertz (THz) radiation based on three-dimensional metamaterial. The metamaterial unit cell consists of an inductor-capacitor (LC) resonator laterally coupled with antenna elements. The absorbing region, consisting of semiconductor quantum wells is contained in the strongly ultra-subwavelength capacitors of the LC structure. The high radiation loss of the antenna allows strongly increased collection efficiency for the incident THz radiation, while the small effective volume of the LC resonator allows intense light-matter coupling with reduced electrical area. As a result, our detectors operates at much higher temperatures than conventional quantum well detectors demonstrated so far.