Realization of Cold-Electron Bolometers with Ultimate Sensitivity due to Strong Electron Self-Cooling
Paper i proceeding, 2017
We have realized an ultimate photon-noise-limited array of cold-electron bolometers (CEBs) for OLIMPO Balloon Telescope. The CEB array demonstrates very effective electron self-cooling of the absorber from 310 mK to 100 mK without optical power load, P-0, and from 310 mK to 160 mK with P-0=20 pW at v=345 GHz. Due to this effective electron cooling acting as strong electrothermal feedback, the ultimate photon-noise-limited mode of operation is realized in the range of P-0 starting from 8 pW and up to P-0=20 pW at T-ph=330 mK. To our knowledge, there is no analog in the world for bolometers working at electron temperature less than phonon temperature.
cold-electron bolometer
electron cooling
photon noise
2D array
SIN tunnel junction
Författare
Leonid Kuzmin
Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik
Vasily Shamporov
Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik
Alexandra Gunbina
Chalmers, Mikroteknologi och nanovetenskap
A. L. Pankratov
Russian Academy of Sciences
NSTU
A. V. Gordeeva
NSTU
V. O. Zbrozhek
NSTU
L. S. Revin
Russian Academy of Sciences
NSTU
S. Masi
Sapienza, Università di Roma
P. de Bernardis
Sapienza, Università di Roma
2017 16TH INTERNATIONAL SUPERCONDUCTIVE ELECTRONICS CONFERENCE (ISEC)
2374-4952 (ISSN)
Vol. 2018-January978-1-5090-5868-6 (ISBN)
16th International Superconductive Electronics Conference (ISEC)
Sorrento, Italy,
Sorrento, Italy,
Ämneskategorier
Atom- och molekylfysik och optik
Annan fysik
Den kondenserade materiens fysik
DOI
10.1109/ISEC.2017.8314194