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- Title
Response of a SINIS Detector with Electron Cooling to Submillimeter-Wave Radiation.
- Authors
Gunbina, A. A.; Lemzyakov, S. A.; Tarasov, M. A.; Edelman, V. S.; Yusupov, R. A.
- Abstract
The response of a detector fabricated on a silicon substrate in the form of a metamaterial that is a 10 × 10 matrix of split rings containing superconductor-insulator-normal metal-insulator-superconductor tunnel structures to submillimeter wave radiation has been experimentally studied. At voltages below the superconducting gap, the electron temperature Te at the substrate temperature T ∼ 0.1 K is ∼0.23 K due to overheating by spurious radiation. At the substrate temperature T ∼ 0.3 K, the electron temperature is close to the substrate temperature Te ≈ T. In both cases, with increasing voltage, Te decreases due to electron cooling and reaches 0.19 K at a voltage corresponding to the maximum response. The response at T = 0.1 K is greater than that at T ∼ 0.3 K by a factor of 5–6. Thus, cooling of only electrons does not provide the same responsivity as cooling of the detector as a whole.
- Subjects
RESPONSIVITY (Detectors); ELECTRON temperature; MATRIX rings; SUBMILLIMETER waves; RADIATION
- Publication
JETP Letters, 2020, Vol 111, Issue 10, p539
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364020100094