Mr. Kiyoshi Ikuma Profile

Kiyoshi Ikuma

at Okayama Univ

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Author

Publications (2)

Proceedings Article | 10 December 2024 Paper

Development status of the polarization modulator using 330 mm diameter sapphire-based achromatic half-wave plate for LiteBIRD

Ryota Takaku, Kosuke Aizawa, Ryosuke Akizawa, Gilberto Goracci, Thuong Hoang, Teruhito Iida, Kiyoshi Ikuma, Kuniaki Konishi, Mitsuharu Kusama, Clément Leloup, Asuka Maeda, Tomotake Matsumura, Hiroyuki Ohsaki, Satsuki Okumura, Haruyuki Sakurai, Yuki Sakurai, Yutaka Terao, Ryota Uematsu

Proceedings Volume PC13102, PC131021D (2024) https://doi.org/10.1117/12.3015964

KEYWORDS: Design, Polarization, Sapphire, Modulation, Cryogenics, Telescopes, Magnetism, Superconductors, Phase shift keying, Modulation frequency

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Proceedings Article | 16 August 2024 Presentation + Paper

Breadboard model assembly and characterization of a sapphire achromatic half-wave plate for LiteBIRD low-frequency telescope

Mitsuharu Kusama, Kosuke Aizawa, Ryosuke Akizawa, Teruhito Iida, Kiyoshi Ikuma, Kuniaki Konishi, Asuka Maeda, Tomotake Matsumura, Haruyuki Sakurai, Yuki Sakurai, Ryota Takaku

Proceedings Volume 13102, 131020A (2024) https://doi.org/10.1117/12.3019752

KEYWORDS: Sapphire, Design, Glues, Polarization, Data modeling, Transmittance, Telescopes, Modulation, Surface finishing, Polarimetry

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