Distributed arrays of cryogenic bolometers with integrating
cavity beam matching
M.A.
Tarasov 1,2,3, S. Mahashabde2, A.A. Gunbina4,6,
M.Yu. Fominskii1, R.A. Yusupov1,5, A.B. Ermakov1,
À.Ì. Chekushkin1,5, A.S.
Sobolev1,5, V.S. Edelman3, M.A. Mansfeld6,
V.F. Vdovin4,6,7
1
Kotelnikov Institute of
Radioengineering and Electronics of Russian Academy of Sciences, Mokhovaya str. 11-7, Moscow
125009, Russia
2 Chalmers University of
Technology, SE-41296
Gothenburg, Sweden
3 P.Kapitza Institute for
Physical Problems of RAS,
Kosygina str. 2, Moscow
117334, Russia
4 R.E.Alekseev Nizhny Novgorod State
Technical University, Minin str. 24, Nizhny
Novgorod 603950, Russia
5 Moscow Institute of
Physics and Technology (State University), Dolgoprudnyy, Institutskii lane 9,
Dolgoprudnyy, Moscow region 141701,
Russia
6Institute of Applied
Physics of Russian Academy of Sciences (IAP RAS), Ulyanova,
46, Nizhny Novgorod 603950,
Russia
7Astro Space Center of PN
Lebedev Physics Institute (ASC LPI), Profsoyuznaya, 84/32, Moscow 117997, Russia
The paper is received
on January
15, 2018
Abstract. Series and
parallel arrays of ring antennas with bolometers of
superconductor-insulator-normal metal-insulator-superconductor (SINIS)
structures are designed, manufactured and experimentally studied. The samples
are matched to the external radiation in the range of 250-380 GHz by an input
conical horn, a circular waveguide with a diameter of 0.9 mm and an integrating
cavity in the form of a conical horn with a counter-reflector (backshort). Spectral
characteristics of such devices are numerically modelled and measured using
Backward Wave Oscillator radiation source. The use of an antireflection coating
on a silicon substrate improves the sensitivity and uniformity of the spectral
response. The measurements were carried out in a dilution cryostat at
temperatures in the range of 80-350 mK. For a series array of 25 antennas with
bolometers, the voltage responsivity to blackbody radiation approaches 3·109
V/W; the linear response observed for the input power up to 5 pW. Current responsivity
for a matrix of 25 parallel antennas with bolometers is 2·104 A / W.
Noise equivalent power in both cases was in the range of (3…5) ·10-17
W/Hz1/2.
Keywords: NIS junction, cryogenic bolometer, integrating sphere, annular antenna,
antenna array, distributed absorber, MM and SubMM waves, cryogenic receivers
for radio astronomy.
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For citation:
M.A.
Tarasov, S. Mahashabde, A.A. Gunbina,
M.Yu. Fominskii, R.A. Yusupov, A.B. Ermakov,
À.Ì. Chekushkin, A.S.
Sobolev, V.S. Edelman, M.A. Mansfeld,
V.F. Vdovin. Distributed arrays of cryogenic bolometers with integrating
cavity beam matching. Zhurnal Radioelektroniki - Journal of
Radio Electronics. 2018. No. 1. Available at
http://jre.cplire.ru/jre/jan18/5/text.pdf.
DOI 10.30898/1684-1719-2018-1-3