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Title: Terahertz amplification in RTD-gated HEMTs with a grating-gate wave coupling topology

Abstract

We theoretically analyze the operation of a terahertz amplifier consisting of a resonant-tunneling-diode gated high-electron-mobility transistor (RTD-gated HEMT) in a grating-gate topology. In these devices, the key element enabling substantial power gain is the efficient coupling of terahertz waves into and out of plasmons in the RTD-gated HEMT channel, i.e., the gain medium, via the grating-gate itself, part of the active device, rather than by an external antenna structure as discussed in previous works, therefore potentially enabling terahertz amplification with associated power gains >40 dB.

Authors:
;  [1]; ;  [2];  [3]
  1. The University of Utah, Salt Lake City, Utah 84112 (United States)
  2. University of Notre Dame, Notre Dame, Indiana 46556 (United States)
  3. (United States)
Publication Date:
OSTI Identifier:
22594313
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 109; Journal Issue: 6; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AMPLIFIERS; ANTENNAS; COUPLING; ELECTRON MOBILITY; GAIN; GRATINGS; PLASMONS; TOPOLOGY; TRANSISTORS; TUNNEL DIODES; TUNNEL EFFECT

Citation Formats

Condori Quispe, Hugo O., Sensale-Rodriguez, Berardi, Encomendero-Risco, Jimy J., Xing, Huili Grace, and Cornell University, Ithaca, New York 14853. Terahertz amplification in RTD-gated HEMTs with a grating-gate wave coupling topology. United States: N. p., 2016. Web. doi:10.1063/1.4961053.
Condori Quispe, Hugo O., Sensale-Rodriguez, Berardi, Encomendero-Risco, Jimy J., Xing, Huili Grace, & Cornell University, Ithaca, New York 14853. Terahertz amplification in RTD-gated HEMTs with a grating-gate wave coupling topology. United States. doi:10.1063/1.4961053.
Condori Quispe, Hugo O., Sensale-Rodriguez, Berardi, Encomendero-Risco, Jimy J., Xing, Huili Grace, and Cornell University, Ithaca, New York 14853. Mon . "Terahertz amplification in RTD-gated HEMTs with a grating-gate wave coupling topology". United States. doi:10.1063/1.4961053.
@article{osti_22594313,
title = {Terahertz amplification in RTD-gated HEMTs with a grating-gate wave coupling topology},
author = {Condori Quispe, Hugo O. and Sensale-Rodriguez, Berardi and Encomendero-Risco, Jimy J. and Xing, Huili Grace and Cornell University, Ithaca, New York 14853},
abstractNote = {We theoretically analyze the operation of a terahertz amplifier consisting of a resonant-tunneling-diode gated high-electron-mobility transistor (RTD-gated HEMT) in a grating-gate topology. In these devices, the key element enabling substantial power gain is the efficient coupling of terahertz waves into and out of plasmons in the RTD-gated HEMT channel, i.e., the gain medium, via the grating-gate itself, part of the active device, rather than by an external antenna structure as discussed in previous works, therefore potentially enabling terahertz amplification with associated power gains >40 dB.},
doi = {10.1063/1.4961053},
journal = {Applied Physics Letters},
number = 6,
volume = 109,
place = {United States},
year = {Mon Aug 08 00:00:00 EDT 2016},
month = {Mon Aug 08 00:00:00 EDT 2016}
}