9 September 1999 NbN phonon-cooled hot-electron bolometer as a mixer for THz heterodyne receivers
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Proceedings Volume 3828, Terahertz Spectroscopy and Applications II; (1999) https://doi.org/10.1117/12.361065
Event: Industrial Lasers and Inspection (EUROPTO Series), 1999, Munich, Germany
Abstract
We have investigated a phonon-cooled NbN hot electron bolometric (HEB) mixer in the frequency range from 0.7 THz to 5.2 THz. The device was a 3.5 nm thin film with an in- plane dimension of 1.7 X 0.2 micrometers 2 integrated in a complementary logarithmic spiral antenna. The measured DSB receiver noise temperatures are 1500 K, 2200 K, 2600 K, 2900 K, 4000 K, 5600 K and 8800 K. The sensitivity fluctuation, the long term stability, and the antenna pattern were measured and the suitability of the mixer for a practical heterodyne receiver is discussed.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Heinz-Wilhelm Huebers, Heinz-Wilhelm Huebers, Josef Schubert, Josef Schubert, A. Semenov, A. Semenov, Gregory N. Gol'tsman, Gregory N. Gol'tsman, Boris M. Voronov, Boris M. Voronov, Eugeni M. Gershenzon, Eugeni M. Gershenzon, Gerhard W. Schwaab, Gerhard W. Schwaab, } "NbN phonon-cooled hot-electron bolometer as a mixer for THz heterodyne receivers", Proc. SPIE 3828, Terahertz Spectroscopy and Applications II, (9 September 1999); doi: 10.1117/12.361065; https://doi.org/10.1117/12.361065
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