Large Area YBa2Cu3O7-x Bolometers on Si Substrates

Published

June 1, 1999

Author(s)

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

Abstract

We have developed YBa₂Cu₃O_7-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)

Issue

2

Conference Dates

June 21-25, 2099

Conference Location

Berkeley, CA, USA

Pub Type

Conferences

Keywords

noise equivalent temperature, Yba₂Cu₃O_7-x (YBCO) Thermometers

Citation

Vale, L. , Ono, R. , McDonald, D. and Phelan, R. (1999), Large Area YBa₂Cu₃O_7-x Bolometers on Si Substrates, Proc., 7th Intl. Superconductive Electronics Conf. (ISEC), Berkeley, CA, USA (Accessed October 11, 2024)