TY  - JOUR
AU  - Shurakov, A.
AU  - Seliverstov, S.
AU  - Kaurova, N.
AU  - Finkel, M.
AU  - Voronov, B.
AU  - Goltsman, G.
PY  - 2012
DA  - 2012//
TI  - Input bandwidth of hot electron bolometer with spiral antenna
T2  - IEEE Trans. THz Sci. Technol.
JO  - IEEE Trans. THz Sci. Technol.
SP  - 400
EP  - 405
VL  - 2
IS  - 4
KW  - NbN HEB bolometers bandwidth
KW  - log-spiral antenna
AB  - We report the results of our study of the input bandwidth of hot electron bolometers (HEB) embedded into the planar log-spiral antenna. The sensitive element is made of the ultrathin superconducting NbN film patterned as a bridge at the feed of the antenna. The contacts between the antenna and a sensitive element are made from in situ deposited gold (i.e., deposited over NbN film without breaking vacuum), which gives high quality contacts and makes the response of the HEB at higher frequencies less affected by the RF loss. An accurate experimental spectroscopic procedure is demonstrated that leads to the confirmation of the wide ( 8 THz) bandwidth in this antenna coupled device.
SN  - 2156-342X
UR  - http://ieeexplore.ieee.org/document/6226432/
UR  - https://doi.org/10.1109/TTHZ.2012.2194852
DO  - 10.1109/TTHZ.2012.2194852
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1161), last updated on Fri, 30 Apr 2021 21:06:57 -0500
ID  - Shurakov_etal2012
ER  -