Far-ir heterodyne radiometric measurements with quasioptical Schottky diode mixers

1978139 citationsJournal Article

Authors

H. R. Fetterman · MIT Lincoln Laboratory

P. E. Tannenwald · MIT Lincoln Laboratory

B. J. Clifton · University of California, Berkeley

C. D. Parker · University of California, Berkeley

W. D. Fitzgerald · Massachusetts Institute of Technology

N. R. Erickson · MIT Lincoln Laboratory

Abstract

We have made heterodyne radiometric measurements with GaAs Schottky diode mixers, mounted in a corner-reflector configuration, over the spectral range 170 μm to 1 mm. At 400 μm, system noise temperatures of 9700 K DSB (NEP=1.4×10−19 W/Hz) and mixer noise temperatures of 5900 K have been achieved. This same quasioptical mixer has also been used to generate 10−7 W of tunable radiation suitable for spectroscopic applications.

Topics & Keywords

Superconducting and THz Device Technology Calibration and Measurement Techniques Advanced Semiconductor Detectors and Materials

UN Sustainable Development Goals

Affordable and clean energy

Publication Details

Published in: Applied Physics Letters

Volume 33, Issue 2, pp. 151-154

DOI: 10.1063/1.90288

Field-Weighted Citation Impact: 15.21