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.

2D array

SIN tunnel junction

photon noise

cold-electron bolometer

electron cooling

Författare

Leonid Kuzmin

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Vasily Shamporov

Unknown organization

Alexandra Gunbina

Unknown organization

A. L. Pankratov

NSTU

Russian Academy of Sciences

A. V. Gordeeva

NSTU

V. O. Zbrozhek

NSTU

L. S. Revin

Russian Academy of Sciences

NSTU

A. L. Pankratov

NSTU

Russian Academy of Sciences

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)

16th International Superconductive Electronics Conference (ISEC)
Sorrento, Italy,

Ämneskategorier

Atom- och molekylfysik och optik

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