Optical designing of LiteBIRD

Hajime Sugai; Shingo Kashima; Kimihiro Kimura; Tomotake Matsumura; Masanori Inoue; Makoto Ito; Toshiyuki Nishibori; Yutaro Sekimoto; Hirokazu Ishino; Yuki Sakurai; Hiroaki Imada; Takenori Fujii

doi:10.1117/12.2232008

Optical designing of LiteBIRD

Hajime Sugai, Shingo Kashima, Kimihiro Kimura, Tomotake Matsumura, Masanori Inoue, Makoto Ito, Toshiyuki Nishibori, Yutaro Sekimoto, Hirokazu Ishino, Yuki Sakurai, Hiroaki Imada, Takenori Fujii

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

7 Citations (Scopus)

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.

Original language	English
Title of host publication	Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave
Publisher	SPIE
Volume	9904
ISBN (Electronic)	9781510601871
DOIs	https://doi.org/10.1117/12.2232008
Publication status	Published - 2016
Event	Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave - Edinburgh, United Kingdom Duration: Jun 26 2016 → Jul 1 2016

Other

Other	Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave
Country/Territory	United Kingdom
City	Edinburgh
Period	6/26/16 → 7/1/16

Keywords

Cosmic microwave background
Millimeter wave
Optical design
Polarization
Primordial gravitational wave
Space telescope

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.2232008

Cite this

Sugai, H, Kashima, S, Kimura, K, Matsumura, T, Inoue, M, Ito, M, Nishibori, T, Sekimoto, Y, Ishino, H , Sakurai, Y, Imada, H & Fujii, T 2016, Optical designing of LiteBIRD. in Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave. vol. 9904, 99044H, SPIE, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, Edinburgh, United Kingdom, 6/26/16. https://doi.org/10.1117/12.2232008

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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.",

keywords = "Cosmic microwave background, Millimeter wave, Optical design, Polarization, Primordial gravitational wave, Space telescope",

author = "Hajime Sugai and Shingo Kashima and Kimihiro Kimura and Tomotake Matsumura and Masanori Inoue and Makoto Ito and Toshiyuki Nishibori and Yutaro Sekimoto and Hirokazu Ishino and Yuki Sakurai and Hiroaki Imada and Takenori Fujii",

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T1 - Optical designing of LiteBIRD

AU - Sugai, Hajime

AU - Kashima, Shingo

AU - Kimura, Kimihiro

AU - Matsumura, Tomotake

AU - Inoue, Masanori

AU - Ito, Makoto

AU - Nishibori, Toshiyuki

AU - Sekimoto, Yutaro

AU - Ishino, Hirokazu

AU - Sakurai, Yuki

AU - Imada, Hiroaki

AU - Fujii, Takenori

PY - 2016

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N2 - 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.

AB - 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.

KW - Cosmic microwave background

KW - Millimeter wave

KW - Optical design

KW - Polarization

KW - Primordial gravitational wave

KW - Space telescope

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AN - SCOPUS:84991376259

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BT - Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave

PB - SPIE

T2 - Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave

Y2 - 26 June 2016 through 1 July 2016

ER -

Optical designing of LiteBIRD

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Keywords

ASJC Scopus subject areas

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