Title

First Observation Of A Plasmon-Mediated Tunable Photoresponse In A Grating-Gated Ingaas/Inp Hemt For Millimeter-Wave Detection

Keywords

2DEG; HEMT; Plasmon; Terahertz

Abstract

A tunable resonant photoresponse to millimeter-waves is demonstrated in a grating-gated high electron mobility transistor (HEMT) formed by an InGaAs/InP heterostructure. The gate consists of a metal grating with 9 μm period, which was designed to couple mm-radiation to plasmons in the two-dimensional electron gas (2DEG) of the HEMT. The resonant excitation of plasmons, which shifts with gate-bias, changes the channel conductance. These devices have potential as chip-scale frequency-agile mm-wave detectors, which may be scaled to THz frequencies. © 2012 SPIE.

Publication Date

12-1-2012

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

8512

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.930359

Socpus ID

84872540608 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84872540608

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