Development of infrared high-dispersion grating by high precision processing

2009 Fiscal Year Final Research Report

• Project/Area Number: 19340043
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Astronomy
• Research Institution: Nagoya University
• Principal Investigator: HIRAHARA Yasuhiro Nagoya University, 環境学研究科, 准教授 (30252224)
• Project Period (FY): 2007 – 2009
• Keywords: 赤外線天文学 / 星間物質 / 赤外分光 / イマージョングレーティング / 超精密加工 / エシェル分光 / 振動回転スペクトル / 短寿命分子種

Research Abstract

We have developed a germanium immersion grating mid-infrared cryogenic spectrograph (GIGMICS) designed for the Nasmyth focus stage of NAOJ Subaru 8.2 m telescope, which operates at N-band (8-13 μm) in wavelength with the R～50,000. A single crystal germanium immersion echelle grating (30×30×72 mm) for collimated beam size of φ28 mm was fabricated by utilizing ultra precision micro-grinding method coupled with the ELID (ELectrolytic In-process Dressing) technique. The instrument has been assembled and is now tested for the application to the gas-phase IR high-resolution spectroscopy.

Research Products

• [Journal Article] Development of the mid-IR echelle high-dispersion spectrograph employing the germanium immersion grating (2010)
  • Author(s): Hirahara Y., Hirao, T., Tatamitani, Y., Yonezu, T., Ebizuka, N., Kawaguchi, K., Tokoro, H., Oka, T. N.
  • Journal Title: Proceedings of SPIE 7735 Pages: 46
• [Journal Article] Mid-IR High-resolution Echelle Spectrometer (MIRHES) for SPICA (2010)
  • Author(s): Kobayashi, N., Sarugaku, Y., Ikeda Y., Kawakita H., Enya K., Nakagawa T., Kataza H., Matsuhara H., Hirahara Y., Tokoro H.
  • Journal Title: Proceedings of SPIE 7010 Pages: 181
• [Journal Article] 宇宙と化学のつながり (2009)
  • Author(s): 平原靖大
  • Journal Title: 月刊化学 第64巻8号 Pages: 24-28
• [Presentation] Development of the mid-IR gh-dispersion spectrograph employing the germanium immersion grating (2010)
  • Author(s): Hirahara, Y., Hirao, T., Tatamitani, Y., Yonezu, T., Ebizuka, N., Kawaguchi, K., Tokoro, H., Oka, T.N.,hiechelle
  • Organizer: SPIE conference on Ground-based and Airborne Instrumentation for Astronomy III, Town & Country Resort and Convention Center
  • Place of Presentation: 米国サンディエゴ
  • Year and Date: 2010-06-30
• [Presentation] Mid-IR High-resolution Echelle Spectrometer (MIRHES) for SPICA (2010)
  • Author(s): Kobayashi, N., Sarugaku, Y., Ikeda, Y., Kawakita, H., Enya K., Nakagawa, T., Kataza, H., Matsuhara H., 平原靖大, 畳谷仁男
  • Organizer: SPIE conference on Ground-based and Airborne Instrumentation for Astronomy III, Town & Country Resort and Convention Center
  • Place of Presentation: 米国サンディエゴ
  • Year and Date: 2010-06-30
• [Presentation] Geイマージョングレーティングを用いた中間赤外線高分散分光器の分光性能評価 (2010)
  • Author(s): 平原靖大、平尾強司、畳谷仁男、米津朋尚、岡知路、海老塚昇、川口建太郎、所仁志
  • Organizer: 日本天文学会2010年春季年会
  • Place of Presentation: 広島大学(広島県)
  • Year and Date: 2010-03-27
• [Presentation] Emission Spectroscopy of Unstable Molecules in Discharge Plasma by Using Mid-IR High-Dispersion Echelle Spectrograph (2009)
  • Author(s): Tatamitani, Y., Hirao, T., Yonezu, T., Oka, T. N., Tokoro, H., Ebizuka, N., Hirahara, Y., Kawaguchi, K.
  • Organizer: 日本分光学会年次講演会
  • Place of Presentation: 東京工業大学(東京都)
  • Year and Date: 2009-11-18
• [Presentation] Spectrographs and Gratings for the Subaru Telescope and for Plasma Diagnoses", International Symposium on "Application of Spectroscopy to Research and Development" (2009)
  • Author(s): Ebizuka, N., Nakajima, K., Kodate K., Ichikawa T., Yamada T., Kawabata K., Hattori T., Iye M., Tokoro H., Hirahara Y., Sato S., Hori M.
  • Organizer: 日本分光学会年次講演会
  • Place of Presentation: 東京工業大学(東京都)
  • Year and Date: 2009-11-17
• [Presentation] Geイマージョングレーティングを用いた中間赤外線高分散分光器の分光性能評価 (2009)
  • Author(s): 平尾強司、畳谷仁男、岡知路、所仁志、海老塚昇、平原靖大、川口建太郎
  • Organizer: 分子分光研究会
  • Place of Presentation: 富山大学(富山県)
  • Year and Date: 2009-05-16
• [Book] 地球化学分析法(第8巻) (2010)
  • Author(s): 山口靖、平原靖大
  • Publisher: 地球化学講座
• [Remarks] ホームページ等
  • URL: http://www.eps.nagoya-u.ac.jp/system/member/hirahara.html/