@InProceedings{Yngvesson_etal1999, author="Yngvesson, K. S. and Gerecht, E. and Musante, C. F. and Zhuang, Y. and Ji, M. and Goyette, T. M. and Dickinson, J. C. and Waldman, J. and Yagoubov, P. A. and Gol{\textquoteright}tsman, G. N. and Voronov, B. M. and Gershenzon, E. M.", editor="Hwu, R. J. and Wu, K.", title="Low-noise HEB heterodyne receivers and focal plane arrays for the THz regime using NbN", booktitle="Proc. SPIE", year="1999", publisher="SPIE", volume="3795", pages="357--368", optkeywords="NbN HEB mixers", abstract="We have developed prototype HEB receivers using thin film superconducting NbN devices deposited on silicon substrates. The devices are quasi-optically coupled through a silicon lens and a self-complementary log-specific toothed antenna. We measured DSB receiver noise temperatures of 500 K (13 X hf/2k) at 1.56 THz and 1,100 K (20 X hf/2k) at 2.24 THz. Noise temperatures are expected to fall further as devices and quasi-optical coupling methods are being optimized. The measured 3 dB IF conversion gain bandwidth for one device was 3 GHz, and it is estimated that the bandwidth over which the receiver noise temperature is within 3 dB of its minimum value is 6.5 GHz which is sufficient for a number of practical applications. We will discuss our latest results and give a detailed description of our prototype setup and experiments. We will also discuss our plans for developing focal plane arrays with tens of Hot Electron Bolometric mixer elements on a single silicon substrate which will make real time imaging systems in the THz region feasible.", optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=1561), last updated on Tue, 25 May 2021 11:37:34 -0500", doi="10.1117/12.370183", opturl="https://doi.org/10.1117/12.370183" }