TY - JOUR
T1 - Superconducting Sub-THz Receivers for Space and Ground-Based Radio Astronomy
AU - Koshelets, V.
AU - Rudakov, K.
AU - Khudchenko, A.
AU - Filippenko, L.
AU - Hesper, R.
AU - Lepine, J.
AU - Shi, Sheng Cai
AU - Baryshev, A.
N1 - Funding Information:
This study was supported by the Russian Foundation for Basic Research, project no. 19-52-80023. The development of the 211–275 GHz mixer was supported by the Russian Science Foundation, project no. 19-19-00618. Tunnel structures were fabricated in the Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences within the State contract using the Unique Scientific Facility 352529.
Publisher Copyright:
© 2021, Allerton Press, Inc.
PY - 2021/11/8
Y1 - 2021/11/8
N2 - Abstract: The developments in the field of low-noise receiving systems in the sub-THz range, performed at the Kotelnikov Institute of Radio Engineering of the Russian Academy of Sciences in recent years and aimed at the creation of receivers with quantum sensitivity for space and ground-based radio telescopes are presented. Superconductor–insulator–superconductor (SIS) mixers based on high-quality tunnel junctions are key elements of the most sensitive sub-THz heterodyne receivers. The article presents the results of the development of SIS receivers in the 211–275 GHz and 800–950 GHz ranges with a noise temperature in the double-sideband (DSB) mode of about 20 K and 220 K, respectively. These achievements will be used to develop receiving systems for APEX and LLMA ground-based telescopes, as well as for the Millimetron space mission.
AB - Abstract: The developments in the field of low-noise receiving systems in the sub-THz range, performed at the Kotelnikov Institute of Radio Engineering of the Russian Academy of Sciences in recent years and aimed at the creation of receivers with quantum sensitivity for space and ground-based radio telescopes are presented. Superconductor–insulator–superconductor (SIS) mixers based on high-quality tunnel junctions are key elements of the most sensitive sub-THz heterodyne receivers. The article presents the results of the development of SIS receivers in the 211–275 GHz and 800–950 GHz ranges with a noise temperature in the double-sideband (DSB) mode of about 20 K and 220 K, respectively. These achievements will be used to develop receiving systems for APEX and LLMA ground-based telescopes, as well as for the Millimetron space mission.
KW - low-noise SIS receivers
KW - niobium based high quality tunnel junctions
KW - radio astronomy
KW - terahertz range quantum-limited mixers
UR - http://www.scopus.com/inward/record.url?scp=85118707381&partnerID=8YFLogxK
U2 - 10.3103/S1068335621090062
DO - 10.3103/S1068335621090062
M3 - Article
AN - SCOPUS:85118707381
SN - 1068-3356
VL - 48
SP - 287
EP - 291
JO - Bulletin of the Lebedev Physics Institute
JF - Bulletin of the Lebedev Physics Institute
IS - 9
ER -