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Proceedings Paper

Low-noise HEB heterodyne receivers and focal plane arrays for the THz regime using NbN
Author(s): K. Sigfrid Yngvesson; Eyal Gerecht; Charles F. Musante; Yan Zhuang; Ming Ji; Thomas M. Goyette; Jason C. Dickinson; Jerry Waldman; Pavel A. Yagoubov; Gregory N. Gol'tsman; Boris M. Voronov; Eugeni M. Gershenzon
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Paper 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.

Paper Details

Date Published: 12 November 1999
PDF: 12 pages
Proc. SPIE 3795, Terahertz and Gigahertz Photonics, (12 November 1999); doi: 10.1117/12.370183
Show Author Affiliations
K. Sigfrid Yngvesson, Univ. of Massachusetts/Amherst (United States)
Eyal Gerecht, Univ. of Massachusetts/Amherst (United States)
Charles F. Musante, Univ. of Massachusetts/Amherst (United States)
Yan Zhuang, Univ. of Massachusetts/Amherst (United States)
Ming Ji, Univ. of Massachusetts/Amherst (United States)
Thomas M. Goyette, Univ. of Massachusetts/Lowell (United States)
Jason C. Dickinson, Univ. of Massachusetts/Lowell (United States)
Jerry Waldman, Univ. of Massachusetts/Lowell (United States)
Pavel A. Yagoubov, Chalmers Univ. of Technology (Netherlands)
Gregory N. Gol'tsman, Moscow State Pedagogical Univ. (Russia)
Boris M. Voronov, Moscow State Pedagogical Univ. (Russia)
Eugeni M. Gershenzon, Moscow State Pedagogical Univ. (Russia)

Published in SPIE Proceedings Vol. 3795:
Terahertz and Gigahertz Photonics
R. Jennifer Hwu; Ke Wu, Editor(s)

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