@Article{Gerecht_etal1999, author="Gerecht, E. and Musante, C. F. and Jian, H. and Yngvesson, K. S. and Dickinson, J. and Waldman, J. and Yagoubov, P. A. and Gol{\textquoteright}tsman, G. N. and Voronov, B. M. and Gershenzon, E. M.", title="New results for NbN phonon-cooled hot electron bolometric mixers above 1 THz", journal="IEEE Trans. Appl. Supercond.", year="1999", volume="9", number="2", pages="4217--4220", optkeywords="NbN HEB mixers", abstract="NbN Hot Electron Bolometric (HEB) mixers have produced promising results in terms of DSB receiver noise temperature (2800 K at 1.56 THz). The LO source for these mixers is a gas laser pumped by a CO/sub 2/ laser and the device is quasi-optically coupled through an extended hemispherical lens and a self-complementary log-periodic toothed antenna. NbN HEBs do not require submicron dimensions, can be operated comfortably at 4.2 K or higher, and require LO power of about 100-500 nW. IF noise bandwidths of 5 GHz or greater have been demonstrated. The DC bias point is also not affected by thermal radiation at 300 K. Receiver noise temperatures below 1 THz are typically 450-600 K and are expected to gradually approach these levels above 1 THz as well. NbN HEB mixers thus are rapidly approaching the type of performance required of a rugged practical receiver for astronomy and remote sensing in the THz region.", optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1568), last updated on Tue, 25 May 2021 12:32:05 -0500", issn="1051-8223", doi="10.1109/77.783955", opturl="http://ieeexplore.ieee.org/document/783955/", opturl="https://doi.org/10.1109/77.783955" }