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Proceedings Article

Optical designing of LiteBIRD

[+] Author Affiliations
Hajime Sugai, Yuki Sakurai, Takenori Fujii

The Univ. of Tokyo (Japan)

Shingo Kashima, Yutaro Sekimoto

National Astronomical Observatory of Japan (Japan)

Kimihiro Kimura, Masanori Inoue, Makoto Ito

Osaka Prefecture Univ. (Japan)

Tomotake Matsumura, Toshiyuki Nishibori, Hiroaki Imada

Japan Aerospace Exploration Agency (Japan)

Hirokazu Ishino

Okayama Univ. (Japan)

Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99044H (July 29, 2016); doi:10.1117/12.2232008
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From Conference Volume 9904

  • Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave
  • Howard A. MacEwen; Giovanni G. Fazio; Makenzie Lystrup; Natalie Batalha; Nicholas Siegler; Edward C. Tong
  • Edinburgh, United Kingdom | June 26, 2016

abstract

LiteBIRD aims to detect the footprint of the primordial gravitational wave on the Cosmic Microwave Background (CMB) in a form of polarization pattern called B mode. In order to separate CMB from the Galactic emission, our measurements cover 35 GHz to 450 GHz. The LiteBIRD optics consists of two telescopes: a crossed Dragone type for lower frequencies, which provides a compact configuration with a wide field of view, and a refractor type for higher frequencies. The whole optical system is cooled down to around 5 K to minimize the thermal emission. We use two kinds of approaches of designing calculations as well as the experimental confirmation particularly for the lower frequency telescope. © (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Hajime Sugai ; Shingo Kashima ; Kimihiro Kimura ; Tomotake Matsumura ; Masanori Inoue, et al.
" Optical designing of LiteBIRD ", Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99044H (July 29, 2016); doi:10.1117/12.2232008; http://dx.doi.org/10.1117/12.2232008


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