Novel gratings for astronomical observations

We introduce novel gratings for next generation instruments of the TMT (Thirty Meter Telescope), the 8.2 m Subaru telescope, other ground-based and space-borne telescopes. The reflector facet transmission (RFT) grating which is a surface relief grating with sawtooth shaped grating lattice of an acut...

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Main Authors Ebizuka, N, Okamoto, T, Takeda, M, Hosobata, T, Yamagata, Y, Sasaki, M, Kamizuka, T, Tanaka, I, Hattori, T, Ozaki, S, Aoki, W
Format Conference Proceeding
LanguageEnglish
Published SPIE 12.07.2019
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Abstract We introduce novel gratings for next generation instruments of the TMT (Thirty Meter Telescope), the 8.2 m Subaru telescope, other ground-based and space-borne telescopes. The reflector facet transmission (RFT) grating which is a surface relief grating with sawtooth shaped grating lattice of an acute vertex angle, is developed for the WFOS of the TMT. The hybrid grism (direct vision grating) for the MOIRCSof the 8.2m Subaru Telescope is developed as a prototype of the RFT grating. The volume binary grating is developed for a high-dispersion echelle grism of the nuMOIRCS as the first light instrument of the ULTIMATE Subaru. We also developing a silicon grism for the MIMIZUKU of the 6.5m telescope of the University of Tokyo Atacama Observatory in Chile and a quasi-Bragg (QB) immersion grating.
AbstractList We introduce novel gratings for next generation instruments of the TMT (Thirty Meter Telescope), the 8.2 m Subaru telescope, other ground-based and space-borne telescopes. The reflector facet transmission (RFT) grating which is a surface relief grating with sawtooth shaped grating lattice of an acute vertex angle, is developed for the WFOS of the TMT. The hybrid grism (direct vision grating) for the MOIRCSof the 8.2m Subaru Telescope is developed as a prototype of the RFT grating. The volume binary grating is developed for a high-dispersion echelle grism of the nuMOIRCS as the first light instrument of the ULTIMATE Subaru. We also developing a silicon grism for the MIMIZUKU of the 6.5m telescope of the University of Tokyo Atacama Observatory in Chile and a quasi-Bragg (QB) immersion grating.
Author Yamagata, Y
Hattori, T
Okamoto, T
Hosobata, T
Ebizuka, N
Ozaki, S
Aoki, W
Tanaka, I
Sasaki, M
Takeda, M
Kamizuka, T
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  organization: National Astronomical Observatory of Japan (Japan)
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DOI 10.1117/12.2536144
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Editor Karafolas, Nikos
Sodnik, Zoran
Cugny, Bruno
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  organization: European Space Research and Technology Ctr. (Netherlands)
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  surname: Cugny
  fullname: Cugny, Bruno
  organization: Ctr. National d'Études Spatiales (France)
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Conference Date: 2018-10-09|2018-10-12
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