Terahertz detection in single wall carbon nanotubes

TL;DR

This paper demonstrates sensitive detection of terahertz radiation using bundles of metallic carbon nanotubes, with potential for operation at temperatures above 4.2 K, highlighting a bolometric detection mechanism.

Contribution

It introduces a novel terahertz detection device based on metallic carbon nanotubes coupled with a lithographic antenna and silicon lens.

Findings

Effective detection from 0.69 THz to 2.54 THz

Consistent with bolometric detection process

Operates above 4.2 K

Abstract

It is reported that terahertz radiation from 0.69 THz to 2.54 THz has been sensitively detected in a device consisting of bundles of metallic carbon nanotubes, quasi-optically coupled through a lithographically fabricated antenna, and a silicon lens. The measured data are consistent with a bolometric process and show promise for operation above 4.2 K.