Abstract
We propose a novel antenna-coupled low Tc superconducting bolometer which makes use of the thermal boundary resistance and the trapping of quasiparticles at metal-superconducting interfaces. A thin strip of superconductor, whose temperature is regulated at the midpoint of its resistive transition, serves both as a resistive load to thermalize the infrared current from the antenna and as a thermometer to measure the resulting temperature rise. Calculations give a noise equivalent power (NEP)≊7×10−16 T5/2 WHz−1/2 and a time constant τ≊10−8 T−2 s for a 2×2 μm2 thermometer area at temperature T (K). Designs for efficient on-chip rf matching and filter networks with well-defined bandpasses are presented. These detectors can be used to make frequency-multiplexed array receivers for astronomical observations at near millimeter wavelengths.
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Dates
Type | When |
---|---|
Created | 23 years ago (July 26, 2002, 8:42 a.m.) |
Deposited | 1 year, 6 months ago (Feb. 2, 2024, 10:06 p.m.) |
Indexed | 1 month, 3 weeks ago (July 1, 2025, 9:06 a.m.) |
Issued | 33 years, 9 months ago (Oct. 28, 1991) |
Published | 33 years, 9 months ago (Oct. 28, 1991) |
Published Print | 33 years, 9 months ago (Oct. 28, 1991) |
@article{Mees_1991, title={New designs for antenna-coupled superconducting bolometers}, volume={59}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.106059}, DOI={10.1063/1.106059}, number={18}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Mees, J. and Nahum, M. and Richards, P. L.}, year={1991}, month=oct, pages={2329–2331} }