High-sensitivity transition-edge-sensed bolometers: Improved speed and characterization with AC and DC bias-Reference-Cited by-同舟云学术

High-sensitivity transition-edge-sensed bolometers: Improved speed and characterization with AC and DC bias

Published:2023-09-07 Issue:9 Volume:134 Page:
ISSN:0021-8979
Container-title:Journal of Applied Physics
language:en
Short-container-title:

Author:

Foote Logan¹²^ORCID,Audley Michael D.³,Bradford Charles (Matt)¹²,de Lange Gert³,Echternach Pierre²,Fixsen Dale J.⁴⁵,Hui Howard¹²^ORCID,Kenyon Matthew²,Nguyen Hien¹²,O’Brient Roger¹²^ORCID,Sharp Elmer H.⁴⁶^ORCID,Staguhn Johannes G.⁴⁷^ORCID,van der Kuur Jan³^ORCID,Zmuidzinas Jonas¹²

Affiliation:

1. Department of Physics, California Institute of Technology 1 , Pasadena, California 91125, USA

2. Jet Propulsion Laboratory, California Institute of Technology 2 , Pasadena, California 91125, USA

3. SRON, Netherlands Institute for Space Research 3 , 2333CA Leiden, The Netherlands

4. Observational Cosmology Lab, Code 665, NASA Goddard Space Flight Center 4 , Greenbelt, Maryland 20771, USA

5. CRESST/University of Maryland 5 , College Park, Maryland 20742, USA

6. Alora Science & Design LLC 6 , 7007 Leesville Blvd, Springfield, Virginia 22151, USA

7. The William H. Miller III Department of Physics and Astronomy, Johns Hopkins University 7 , 3400 North Charles Street, Baltimore, Maryland 21218, USA

Abstract

We report on efforts to improve the speed of low-G far-infrared transition-edged-sensed bolometers. We use a fabrication process that does not require any dry etch steps to reduce heat capacity on the suspended device and measure a reduction in the detector time constant. However, we also measure an increase in the temperature-normalized thermal conductance (G) and a corresponding increase in the noise-equivalent power (NEP). We employ a new near-IR photon-noise technique using a near-IR laser to calibrate the frequency-domain multiplexed AC system and compare the results to a well-understood DC circuit. We measure an NEP white noise level of 0.8 aW/rtHz with a 1/f knee below 0.1 Hz and a time constant of 3.2 ms.

Funder

Jet Propulsion Laboratory

Publisher

AIP Publishing

Subject

General Physics and Astronomy

Link

https://pubs.aip.org/aip/jap/article-pdf/doi/10.1063/5.0157208/18114542/094503_1_5.0157208.pdf

Reference45 articles.

1. The Aatacama Cosmology Telescope: The polarization-sensitive ACTPol instrument;Astrophys. J. Suppl. Ser.,2016

2. Bicep2. II. Experiment and three-year data set;Astrophys. J.,2014

3. Bicep/Keck XV: The Bicep3 cosmic microwave background polarimeter and the first three-year data set;Astrophys. J.,2022

4. The GISMO two-millimeter deep field in GOODS-N;Astrophys. J.,2014