Millimeter and submillimeter detection using Ga1?xAlxAs/GaAs heterostructures

Autor:	M.A. Brummell, S. M. Smith, N. J. Cronin, C. T. Foxon, J.J. Harris, Robin J. Nicholas
Rok vydání:	1987
Předmět:	Radiation Materials science business.industry Orders of magnitude (temperature) Detector Heterojunction Condensed Matter Physics Particle detector Wavelength Responsivity Optics Optoelectronics Millimeter Electrical and Electronic Engineering business Instrumentation Gunn diode
Zdroj:	International Journal of Infrared and Millimeter Waves. 8:793-802
ISSN:	1572-9559 0195-9271
DOI:	10.1007/bf01010721
Popis:	We have shown that a Ga1−xAlxAs/GaAs heterostructure can be used as a sensitive tunable detector of mm-wave/sub-mm-wave radiation. The mechanism for detection requires the application of a magnetic field varying from approximately 0.2T at 94GHz (3.2mm wavelength) to 6.2T at 2500GHz (119μm wavelength). The responsivity and N.E.P. at 3.2mm have been roughly estimated at 200V/W and 5×10−11W/✓Hz respectively. The speed of such a detector could be several orders of magnitude greater than comparable InSb detectors.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7580cc155689698a0d08c8b7998a8e17 https://doi.org/10.1007/bf01010721 Zobrazit plný text záznamu Full text from SpringerLink