2013 Fiscal Year Final Research Report
Development of Immersion Grating for Mid-infrared High-resolution Spectroscopy: Technique to Coat Metal on Diffraction Surface
Project/Area Number |
24740131
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Astronomy
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Research Institution | Japan Aerospace Exploration Agency |
Principal Investigator |
SARUGAKU Yuki 独立行政法人宇宙航空研究開発機構, 宇宙科学研究所, 研究員 (10512147)
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Project Period (FY) |
2012-04-01 – 2014-03-31
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Keywords | イマージョングレーティング / 高分散分光 / 赤外線 / CdZnTe |
Research Abstract |
We have advanced the development of an immersion grating, which could be the key device to realize a compact lightweight high-resolution spectrograph in the mid-infrared wavelength region. From precise measurements of transmittances of some candidate materials, it was found that low-carrier (high-resistivity) CdZnTe has high transparency (internal attenuation is less than 0.01/cm) at the wavelength range from 5 to 20 um. From experiments to coat flat substrate of CdZnTe with metal, it was found that Al has sufficient reflectivity as reflective coating on the diffraction surface and that the coating is durable at low temperature. Also, a practical large CdZnTe immersion grating (without coating) was fabricated, which is the first case in the world.
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[Journal Article] Development of CdZnTe immersion grating for spaceborne application2012
Author(s)
Yuki Sarugaku, Yuji Ikeda, Naoto Kobayashi, Takashi Sukegwa, Shigeru Sugiyama, Keigo Enya, Hirokazu Kataza, Hideo Matsuhara, Takao Nakagawa, Hideyo Kawakita, Sohei Kondo, Yasuhiro Hirahara, Chikako Yasui
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Journal Title
Proc. SPIE
Volume: 8442
Pages: 844257
DOI
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[Presentation] Development of CdZnTe immersion grating for spaceborne application2012
Author(s)
Yuki Sarugaku, Yuji Ikeda, Naoto Kobayashi, Takashi Sukegwa, Shigeru Sugiyama, Keigo Enya, Hirokazu Kataza, Hideo Matsuhara, Takao Nakagawa, Hideyo Kawakita, Sohei Kondo, Yasuhiro Hirahara, Chikako Yasui
Organizer
SPIE 2012 Astronoimcal Telescopes + Instrumentation
Place of Presentation
The Netherlands
Year and Date
20120701-06