Development of a near-infrared wide-field integral field unit by ultra-precision diamond cutting
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- Kosuke Kushibiki
- The University of Tokyo, Graduate School of Science, Institute of Astronomy, Tokyo, Japan
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- Shinobu Ozaki
- National Astronomical Observatory of Japan, Advanced Technology Center, Tokyo, Japan
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- Masahiro Takeda
- RIKEN, RIKEN Center for Advanced Photonics, Saitama, Japan
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- Takuya Hosobata
- RIKEN, RIKEN Center for Advanced Photonics, Saitama, Japan
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- Yutaka Yamagata
- RIKEN, RIKEN Center for Advanced Photonics, Saitama, Japan
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- Shinya Morita
- Tokyo Denki University, School of Engineering, Department of Advanced Machinery Engineering, Tokyo, Japan
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- Toshihiro Tsuzuki
- National Astronomical Observatory of Japan, Advanced Technology Center, Tokyo, Japan
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- Keiichi Nakagawa
- The University of Tokyo, Graduate School of Engineering, Department of Bioengineering, Tokyo, Japan
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- Takao Saiki
- The University of Tokyo, Graduate School of Engineering, Department of Precision Engineering, Tokyo, Japan
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- Yutaka Ohtake
- The University of Tokyo, Graduate School of Engineering, Department of Precision Engineering, Tokyo, Japan
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- Kenji Mitsui
- National Astronomical Observatory of Japan, Advanced Technology Center, Tokyo, Japan
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- Hirofumi Okita
- National Astronomical Observatory of Japan, Subaru Telescope, Hilo, Hawaii, United States
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- Yutaro Kitagawa
- The University of Tokyo, Graduate School of Science, Institute of Astronomy, Tokyo, Japan
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- Yukihiro Kono
- The University of Tokyo, Graduate School of Science, Institute of Astronomy, Tokyo, Japan
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- Kentaro Motohara
- National Astronomical Observatory of Japan, Advanced Technology Center, Tokyo, Japan
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- Hidenori Takahashi
- The University of Tokyo, Graduate School of Science, Institute of Astronomy, Kiso Observatory, Nagano, Japan
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- Masahiro Konishi
- The University of Tokyo, Graduate School of Science, Institute of Astronomy, Tokyo, Japan
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- Natsuko Kato
- The University of Tokyo, Graduate School of Science, Institute of Astronomy, Tokyo, Japan
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- Shuhei Koyama
- The University of Tokyo, Graduate School of Science, Institute of Astronomy, Tokyo, Japan
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- Nuo Chen
- National Astronomical Observatory of Japan, Advanced Technology Center, Tokyo, Japan
書誌事項
- 公開日
- 2024-03-04
- 資源種別
- journal article
- DOI
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- 10.1117/1.jatis.10.1.015004
- 公開者
- SPIE-Intl Soc Optical Eng
この論文をさがす
説明
Integral Field Spectroscopy (IFS) is an observational method to obtain spatially resolved spectra over a specific field of view (FoV) in a single exposure. In recent years, near-infrared IFS has gained importance in observing objects with strong dust attenuation or at high redshift. One limitation of existing near-infrared IFS instruments is their relatively small FoV, less than 100 arcsec$^2$, compared to optical instruments. Therefore, we have developed a near-infrared (0.9-2.5 $\mathrm{\mu}$m) image-slicer type integral field unit (IFU) with a larger FoV of 13.5 $\times$ 10.4 arcsec$^2$ by matching a slice width to a typical seeing size of 0.4 arcsec. The IFU has a compact optical design utilizing off-axis ellipsoidal mirrors to reduce aberrations. Complex optical elements were fabricated using an ultra-precision cutting machine to achieve RMS surface roughness of less than 10 nm and a P-V shape error of less than 300 nm. The ultra-precision machining can also simplify alignment procedures. The on-sky performance evaluation confirmed that the image quality and the throughput of the IFU were as designed. In conclusion, we have successfully developed a compact IFU utilizing an ultra-precision cutting technique, almost fulfilling the requirements.
Comment: 24 pages, 18 figures, 7 tables. Accepted for publication in JATIS
収録刊行物
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- Journal of Astronomical Telescopes, Instruments, and Systems
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Journal of Astronomical Telescopes, Instruments, and Systems 10 (01), 2024-03-04
SPIE-Intl Soc Optical Eng
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詳細情報 詳細情報について
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- CRID
- 1360021391864763392
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- ISSN
- 23294124
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
- OpenAIRE
