Presentation
29 August 2022 Development of the low frequency telescope optics design for the CMB polarization satellite LiteBIRD
Frederick T. Matsuda, Tadayasu Dotani, Shingo Kashima, Ryo Nagata, Ryo Nakano, Kimihide Odagiri, Shugo Oguri, Yutaro Sekimoto, Hayato Takakura, Kazuya Watanuki, Keisuke Yoshihara
Author Affiliations +
Abstract
LiteBIRD is a JAXA-led international project aimed to make high sensitivity measurements of the primordial B-modes through cosmic microwave background (CMB) polarization observations. LiteBIRD is expected to launch in the late 2020s. The Low Frequency Telescope (LFT) has a 400 mm diameter aperture and will observe at 34-161 GHz. The LFT is an optimized crossed Dragone reflective telescope with high order correction terms in the reflector shapes to maximize its diffraction-limited throughput across a 18° x 9° FOV. We will report on the development of the LFT optics design and assess the optical tolerances for potential misalignments and reflector deformations.
Conference Presentation
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Frederick T. Matsuda, Tadayasu Dotani, Shingo Kashima, Ryo Nagata, Ryo Nakano, Kimihide Odagiri, Shugo Oguri, Yutaro Sekimoto, Hayato Takakura, Kazuya Watanuki, and Keisuke Yoshihara "Development of the low frequency telescope optics design for the CMB polarization satellite LiteBIRD", Proc. SPIE 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 121801T (29 August 2022); https://doi.org/10.1117/12.2629092
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KEYWORDS
Optical design

Polarization

Telescopes

Satellites

Modulation

Reflectors

Reflectivity

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