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) |
|---|---|
| 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 |
Keywords
- Bolometers
- CMB
- Transition edge sensors
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- General Materials Science
- Condensed Matter Physics