journal article·2020-08-01Open access

Characterizing TES power noise for future single optical-phonon and infrared-photon detectors

C. W. Fink, S. L. Watkins, T. Aramaki, P. L. Brink, S. Ganjam, B. A. Hines, M. E. Huber, N. A. Kurinsky, R. Mahapatra, N. Mirabolfathi, W. A. Page, R. Partridge, M. Platt, M. Pyle, B. Sadoulet, B. Serfass, S. Zuber

AIP Advances· Volume 10· Issue 8

Abstract

In this letter, we present the performance of a 100 μm × 400 μm × 40 nm W Transition-Edge Sensor with a critical temperature of 40 mK. This device has a noise equivalent power of 1.5×10-18 W/Hz, in a bandwidth of 2.6 kHz, indicating a resolution for Dirac delta energy depositions of 40 ± 5 meV (rms). The performance demonstrated by this device is a critical step toward developing a O(100) meV threshold athermal phonon detector for low-mass dark matter searches.
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Research context

OpenAlex topics: Superconducting and THz Device Technology · Dark Matter and Cosmic Phenomena · Advanced Thermodynamics and Statistical Mechanics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics, University of California 1 , Berkeley, California 94720, USA

SLAC National Accelerator Laboratory/Kavli Institute for Particle Astrophysics and Cosmology 2 , Menlo Park, California 94025, USA

Department of Physics, University of Colorado Denver 3 , Denver, Colorado 80217, USA

Department of Electrical Engineering, University of Colorado Denver 4 , Denver, Colorado 80217, USA

Fermi National Accelerator Laboratory 5 , Batavia, Illinois 60510, USA

Kavli Institute for Cosmological Physics, University of Chicago 6 , Chicago, Illinois 60637, USA

Department of Physics and Astronomy, and the Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University 7 , College Station, Texas 77843, USA

Funding

Michael M. Garland · National Science Foundation · U.S. Department of Energy

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