HIGH T-C SUPERCONDUCTOR BOLOMETER WITH RECORD PERFORMANCE

Authors
BRASUNAS JC LAKEW B
Citation
Jc. Brasunas et B. Lakew, HIGH T-C SUPERCONDUCTOR BOLOMETER WITH RECORD PERFORMANCE, Applied physics letters, 64(6), 1994, pp. 777-778
Citations number
10
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
64
Issue
6
Year of publication
1994
Pages
777 - 778
Database
ISI
SICI code
0003-6951(1994)64:6<777:HTSBWR>2.0.ZU;2-U
Abstract
We have used prethinned sapphire substrates to make a YBa2Cu3O7-x thin -film, transition-edge bolometer with peak detectivity of 6x10(9) cm H z(1/2)/W near 4 Hz and 90 K. This is a new record for high T-c superco nductor bolometers, and is comparable to the best detectivity yet achi eved for a thermal-type infrared detector with no more than moderate c ooling (liquid-nitrogen temperature and above). We discuss some simple improvements which may push the detectivity above 10(10).