High T c superconductor bolometer with record performance
- 7 February 1994
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 64 (6) , 777-778
- https://doi.org/10.1063/1.111010
Abstract
We have used prethinned sapphire substrates to make a YBa2Cu3O7−x thin‐film, transition‐edge bolometer with peak detectivity of 6×109 cm Hz1/2/W near 4 Hz and 90 K. This is a new record for high Tc superconductor bolometers, and is comparable to the best detectivity yet achieved for a thermal‐type infrared detector with no more than moderate cooling (liquid‐nitrogen temperature and above). We discuss some simple improvements which may push the detectivity above 1010.Keywords
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