Thermo-electric charge-to-voltage converter with superconductor–insulator–normal tunnel junction for bolometer applications
✍ Scribed by Leonid Kuzmin
- Book ID
- 104085670
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 546 KB
- Volume
- 470
- Category
- Article
- ISSN
- 0921-4534
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✦ Synopsis
A novel type of the zero-biased thermo-electric bolometer (TEB) is proposed. The bolometer is based on a charge-to-voltage converter (CVC) with a superconductor-insulator-normal (SIN) tunnel junction and a superconducting absorber. The absorption of photons in the absorber leads to excitation of quasiparticles with some fraction of charge imbalance, tunneling through the SIN junction in zero-biased mode and generation of voltage. The thermoelectric voltage is determined by accumulation of tunneling charge in an external capacitance. Conversion efficiency is very high and voltage values comparable with a superconducting gap are easily achieved. The zero-biased CVC-TEB can be effectively used for creation of an array of bolometers and multi-pixel detection systems.