Imaging system for submillimeter wave range based on AlGaAs/GaAs hot electron bolometer mixers

Author

Maslennikov, S.N. ; Morozov, D.V. ; Ozhegov, R.V. ; Smirnov, K.V. ; Okunev, O.V. ; Tsman, G. N Gol

Author_Institution

Phys. Dept., Moscow State Pedagogical Univ., Russia

Volume

2

fYear

2004

Firstpage

558

Abstract

Electromagnetic radiation of the submillimeter (SMM) range is dispersed and absorbed significantly less than infrared (IR) radiation when passing through different objects. That is the reason for the development of an SMM imaging system. In this paper, we discuss the design of an SMM heterodyne imager, based on a matrix of AlGaAs/GaAs heterostructure hot electron bolometer mixers (HEB) with relatively high (about 77 K) operating temperature. The predicted double side band (DSB) noise temperature is about 1000 K and optimal local oscillator (LO) power is about 1 μW for such mixers, which seems to be quite prospective for an SMM heterodyne imager.

Keywords

bolometers; heterodyne detection; hot carriers; submillimetre wave imaging; submillimetre wave mixers; 1 muW; 1000 K; 77 K; AlGaAs-GaAs; HEB mixers; SMM heterodyne imager; double side band noise temperature; heterostructure hot electron bolometer mixers; optimal local oscillator power; submillimeter wave range imaging system; Bolometers; Electromagnetic radiation; Electromagnetic wave absorption; Electrons; Feeds; Gallium arsenide; Ocean temperature; Optical imaging; Submillimeter wave devices; Transmission line matrix methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Physics and Engineering of Microwaves, Millimeter, and Submillimeter Waves, 2004. MSMW 04. The Fifth International Kharkov Symposium on

Print_ISBN

0-7803-8411-3

Type

conf

DOI

10.1109/MSMW.2004.1346010

Filename

1346010