A superconducting antenna-coupled hot-spot microbolometer
- 2 June 2003
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 82 (22) , 3970-3972
- https://doi.org/10.1063/1.1579562
Abstract
We report the electrical properties of an antenna-coupled niobium vacuum-bridge bolometer, operated at a temperature of 4.2 K, in which the thermal isolation is maximized by the vacuum gap between the bridge and the underlying silicon substrate. The device is voltage-biased, which results in a formation of a normal state region in the middle of the bridge. The device shows a current responsivity of −1430 A/W and an amplifier limited electrical noise equivalent power of 1.4×10−14 W/√Hz.Peer revieweKeywords
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