U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

A superconductor-insulator-normal metal bolometer with microwave readout suitable for large-format arrays

Published

Author(s)

D. R. Schmidt, Anna Clark, William Duncan, Kent D. Irwin, Nathan A. Tomlin, Joel Ullom, Konrad Lehnert

Abstract

We demonstrate high bandwidth and low noise readout of a superconductor-insulator-normal metal-insulator-superconductor hot-electron bolometer element. We measure a noise equivalent temperature of better than .06 'K/Hz' and infer an electrical noise equivalent power of 7 x 10'17W/Hz' for a normal metal volume of 4.5'm 3 at an operating temperature of 270 mK. Using a pulsed bias technique we measure a thermal time constant of 1.2 's at 270mK. The microwave readout method we employ is compatible with large format arrays of 10-3-10-5 pixels required for future far-infrared space based observatories
Citation
Applied Physics Letters
Volume
86
Pub Type
Journals

Download Paper

DOI Link

Keywords

HEMT, NIS, SINIS
Electronics and Advanced communications

Citation

Schmidt, D. , Clark, A. , Duncan, W. , Irwin, K. , Tomlin, N. , Ullom, J. and Lehnert, K. (2005), A superconductor-insulator-normal metal bolometer with microwave readout suitable for large-format arrays, Applied Physics Letters, [online], https://doi.org/10.1063/1.1855411 (Accessed April 24, 2024)

Created January 27, 2005, Updated October 12, 2021