|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'500'096
Articles rated: 2609
19 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Multi-chroic dual-polarization bolometric detectors for studies of the Cosmic Microwave Background | | Aritoki Suzuki
; Kam Arnold
; Jennifer Edwards
; Greg Engargiola
; Adnan Ghribi
; William Holzapfel
; Adrian T. Lee
; Xiao Fan Meng
; Michael J. Myers
; Roger O'Brient
; Erin Quealy
; Gabriel Rebeiz
; Paul Richards
; Darin Rosen
; Praween Siritanasak
; | | Date: |
31 Oct 2012 | | Abstract: | We are developing multi-chroic antenna-coupled TES detectors for CMB
polarimetry. Multi-chroic detectors increase the mapping speed per focal plane
area and provide greater discrimination of polarized galactic foregrounds with
no increase in weight or cryogenic cost. In each pixel, a silicon lens-coupled
dual polarized sinuous antenna collects light over a two-octave frequency band.
The antenna couples the broadband millimeter wave signal into microstrip
transmission lines, and on-chip filter banks split the broadband signal into
several frequency bands. Separate TES bolometers detect the power in each
frequency band and linear polarization. We will describe the design and
performance of these devices and present optical data taken with prototype
pixels. Our measurements show beams with percent level ellipticity, percent
level cross-polarization leakage, and partitioned bands using banks of 2, 3,
and 7 filters. We will also describe the development of broadband
anti-reflection coatings for the high dielectric constant lens. The broadband
anti-reflection coating has approximately 100 percent bandwidth and no
detectable loss at cryogenic temperature. Finally, we will describe an upgrade
for the POLARBEAR CMB experiment and installation for the LITEBird CMB
satellite experiment both of which have focal planes with kilo-pixel of these
detectors to achieve unprecedented mapping speed. | | Source: | arXiv, 1210.8256 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER