Title

Plasmon Resonance Response To Millimeter-Waves Of Grating-Gated Ingaas/Inp Hemt

Keywords

HEMT; Millimeter wave; Plasmon; Terahertz

Abstract

Tunable resonant absorption by plasmons in the two-dimensional electron gas (2DEG) of grating-gated HEMTs is known for a variety of semiconductor systems, giving promise of chip-scale frequency- agile THz imaging spectrometers. In this work, we present our approach to measurement of electrical response to millimeter waves from backward-wave oscillators (BWO) in the range 40-110 GHz for InP-based HEMTs. Frequency-modulation of the BWO with lock-in amplification of the source-drain current gives an output proportional to the change in absorption with frequency without contribution from non-resonant response. This is a first step in optimizing such devices for manportable or space-based spectral-sensing applications. © 2010 SPIE.

Publication Date

9-19-2011

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

8023

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.884005

Socpus ID

80052722517 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/80052722517

This document is currently not available here.

Share

COinS