Title :
Cryogen-free operation of a voltage-biased superconducting bolometer
Author :
Hayton, Darren ; Naylor, David ; Zhang, Yuan ; Mauskopf, Philip ; Ade, Peter ; Dunscombe, Chris ; Wood, Ken ; Cox, James
Author_Institution :
Univ. of Lethbridge, Lethbridge, AB, Canada
Abstract :
We report on the performance of a Nb voltage-biased superconducting bolometer cooled by a closed cycle pulse tube cooler. The VSB has a Tc ~ 8.1 K and an operating impedance of R ~ 800 Ω. A preliminary value for the system optical noise equivalent power (NEP) = 1.8 × 10-12 WHz-1/2 and τ = 0.6 ms.
Keywords :
bolometers; niobium; superconducting devices; Nb; closed cycle pulse tube cooler; cryogen-free operation; voltage-biased superconducting bolometer; Bolometers; Detectors; Optical filters; Optical saturation; Resistance; Temperature measurement; Temperature sensors;
Conference_Titel :
Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010 35th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-6655-9
DOI :
10.1109/ICIMW.2010.5612399
