Thermal budget simulations and device performance of microstructured high-T/sub c/ transition edge bolometers on silicon

Author

Berg, M. ; Laukemper, J. ; Neff, H. ; Steinbeiss, E. ; Michalke, W. ; Burnus, M. ; Heidenblut, T.

Author_Institution

TZN Forschungs- und Entwicklungszentrum Unterluss, Germany

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

2435

Lastpage

2438

Abstract

Silicon represents the material of choice for fast superconducting high quality transition edge bolometers. The performance of these devices sensitively depends on their thermal properties where the heat flux critically affects time constant, optical response and noise behavior. In this work extensive numerical Finite Element-calculations have been performed for various bolometer configurations, using the ABAQUS-code. A high degree of thermal isolation can be established through microstructuring techniques. The bolometric performance of a prototype device is compared with the simulated data. Values of the detectivity D* as high as 1/spl times/10/sup 10/ cm Hz/sup 1/2/ W/sup -1/ already should be feasible, while a time constant in the regime below 10 ms would be retained.<>

Keywords

bolometers; finite element analysis; high-temperature superconductors; superconducting device noise; 10 ms; ABAQUS-code; Si; detectivity; heat flux; high-T/sub c/ transition edge bolometers; microstructuring; noise; numerical finite element-calculations; optical response; silicon; thermal budget simulations; thermal isolation; time constant; Bolometers; Finite element methods; Optical devices; Optical materials; Optical noise; Optical sensors; Silicon; Superconducting device noise; Superconducting materials; Time factors;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.403083

Filename

403083