Abstract
We present recent optical and thermal characterizations of polarization sensitive mm-wave bolometers fabricated at Argonne National Lab. The devices are designed to measure the polarization of the Cosmic Microwave Background and consist of a Mo/Au TES suspended on SiN with a Pd-Au dipole absorber. The detector performance is excellent with >85% co-polar coupling, <1% cross-polar leakage, 36 GHz optical bandwidth, electrothermal loop gains of approximately 10, and NEP ≃50 aWHz-1/2.
Original language | English (US) |
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Pages (from-to) | 865-871 |
Number of pages | 7 |
Journal | Journal of Low Temperature Physics |
Volume | 167 |
Issue number | 5-6 |
DOIs | |
State | Published - Jun 2012 |
Externally published | Yes |
Keywords
- Bolometers
- CMB
- Transition edge sensors
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- General Materials Science
- Condensed Matter Physics