TY  - CONF
AU  - Yngvesson, K. S.
AU  - Gerecht, E.
AU  - Musante, C. F.
AU  - Zhuang, Y.
AU  - Ji, M.
AU  - Goyette, T. M.
AU  - Dickinson, J. C.
AU  - Waldman, J.
AU  - Yagoubov, P. A.
AU  - Gol’tsman, G. N.
AU  - Voronov, B. M.
AU  - Gershenzon, E. M.
A2  - Terahertz and Gigahertz Photonics
ED  - Hwu, R. J.
ED  - Wu, K.
PY  - 1999
DA  - 1999//
TI  - Low-noise HEB heterodyne receivers and focal plane arrays for the THz regime using NbN
T2  - Proc. SPIE
BT  - Proc. SPIE
SP  - 357
EP  - 368
VL  - 3795
PB  - SPIE
KW  - NbN HEB mixers
AB  - 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.
UR  - https://doi.org/10.1117/12.370183
DO  - 10.1117/12.370183
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1561), last updated on Tue, 25 May 2021 11:37:34 -0500
ID  - Yngvesson_etal1999
ER  -