Characterizing TES power noise for future single optical-phonon and infrared-photon detectors
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 ×1 0-18 W /√{H z }, 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 ) m e V threshold athermal phonon detector for low-mass dark matter searches.
- Publication:
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AIP Advances
- Pub Date:
- August 2020
- DOI:
- 10.1063/5.0011130
- arXiv:
- arXiv:2004.10257
- Bibcode:
- 2020AIPA...10h5221F
- Keywords:
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- Physics - Instrumentation and Detectors
- E-Print:
- 5 pages, 6 figures. Accepted for publication at AIP Advances