TY  - JOUR
AU  - Zhang, W.
AU  - Miao, W.
AU  - Yao, Q. J.
AU  - Lin, Z. H.
AU  - Shi, S. C.
AU  - Gao, J. R.
AU  - Goltsman, G. N.
PY  - 2012
DA  - 2012//
TI  - Spectral response and noise temperature of a 2.5 THz spiral antenna coupled NbN HEB mixer
T2  - Phys. Procedia
JO  - Phys. Procedia
SP  - 334
EP  - 337
VL  - 36
KW  - NbN HEB mixer
AB  - We report on a 2.5 THz spiral antenna coupled NbN hot electron bolometer (HEB) mixers, fabricated with in-situ process. The receiver noise temperature with lowest value of 1180 K is in good agreement with calculated quantum efficiency factor as a function of bias voltage. In addition, the measured spectral response of the spiral antenna coupled NbN HEB mixer shows broad frequency coverage of 0.8-3 THz, and corrected response for optical losses, FTS, and coupling efficiency between antenna and bolometer falls with frequency due to diffraction-limited beam of lens/antenna combination.
SN  - 1875-3892
UR  - https://linkinghub.elsevier.com/retrieve/pii/S1875389212021062
UR  - https://doi.org/10.1016/j.phpro.2012.06.169
DO  - 10.1016/j.phpro.2012.06.169
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1381), last updated on Thu, 13 May 2021 19:08:43 -0500
ID  - Zhang_etal2012
ER  -