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Large Area YBa2Cu3O7-x Bolometers on Si Substrates



Leila R. Vale, Ronald H. Ono, Donald G. McDonald, Robert J. Phelan


We have developed YBa2Cu3O7-x (YBCO) thermometers for large-area (4 mm x 4 mm) electrical substitution bolometers. We passivated the YBCO with a thin Au layer and demonstrated a noise equivalent temperature of 4 nK Hz-1/2. We then used a resistor layer of NiCr alloy deposited directly on the thermometer to perform optical measurements of the bolometer in the cryostat. Optical measurements show an electrical noise equivalent power of 87 pW Hz-1/2 with a large thermal conductance of 1.87 x 10-3 W K-1. these thermometers may be used as a real-time measurement radiometer.
Proceedings Title
Proc., 7th Intl. Superconductive Electronics Conf. (ISEC)
Conference Dates
June 21-25, 2099
Conference Location
Berkeley, CA, USA


noise equivalent temperature, Yba<sub>2</sub>Cu<sub>3</sub>O<sub>7-x</sub> (YBCO) Thermometers


Vale, L. , Ono, R. , McDonald, D. and Phelan, R. (1999), Large Area YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-x</sub> Bolometers on Si Substrates, Proc., 7th Intl. Superconductive Electronics Conf. (ISEC), Berkeley, CA, USA (Accessed July 17, 2024)


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Created May 31, 1999, Updated October 12, 2021