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Semenov, A., Il'yin, K., Siegel, M., Smirnov, A., Pavlov, S., Richter, H., et al. (2006). Intermediate frequency bandwidth of a hot-electron mixer: Comparision with bolometric models. In Proc. 17th Int. Symp. Space Terahertz Technol. (pp. 73–76). Paris, France.
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Kawamura, J., Blundell, R., Tong, C. - Y. E., Papa, D. C., Hunter, T. R., Gol'tsman, G., et al. (1998). First light with an 800 GHz phonon-cooled HEB mixer receiver. In Proc. 9th Int. Symp. Space Terahertz Technol. (pp. 35–43). Pasadena, California, USA.
Abstract: Phonon-cooled superconductive hot-electron bolometric (HEB) mixers are incorporated in a waveguide receiver designed to operate near 800 Gliz. The mixer elements are thin-film nio- bium nitride microbridges with dimensions of 4 nm thickness, 0.2 to 0.3 p.m in length and 2 jun in width. At 780 GHz the best receiver noise temperature is 840 K (DSB). The mixer IF bandwidth is 2.0 GHz, the absorbed LO power is —0.1 1.1W. A fixed-tuned version of the re- ceiver was installed at the Submillimeter Telescope Observatory on Mt. Graham, Arizona, to conduct astronomical observations. These observations represent the first time that a receiver incorporating any superconducting HEB mixer has been used to detect a spectral line of celes- tial origin.
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