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Proceedings Paper

Warm infrared echelle spectrograph (WINERED): testing of optical components and performance evaluation of the optical system
Author(s): Chikako Yasui; Sohei Kondo; Yuji Ikeda; Atsushi Minami; Kentaro Motohara; Naoto Kobayashi
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Paper Abstract

We are developing a new NIR high-resolution (Rmax = 100, 000) and high-sensitive spectrograph WINERED, specifically customized for short NIR bands at 0.9-1.35 μm. WINERED employs the following novel approaches in the optical system: portable design with a ZnSe immersion grating and warm optics without any cold stops. These concepts result in several essential advantages: easy to build, align, and maintain; these result in a short development time and low cost. WINERED is also equipped with a "normal echelle mode", which can cover the entire wavelength range simultaneously with R = 30, 000. In this poster paper, we will present the results of the detailed testing of optical components and the laboratory first light for the normal echelle mode. See Poster paper 7018-183 by Ikeda et al. in another session for the status of the development of the ZnSe immersion grating for R = 100, 000. We plan to complete the normal mode first by the end of 2008 and will install the immersion grating in 2010.

Paper Details

Date Published: 9 July 2008
PDF: 12 pages
Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 701433 (9 July 2008); doi: 10.1117/12.788371
Show Author Affiliations
Chikako Yasui, Institute of Astronomy, Univ. of Tokyo (Japan)
Sohei Kondo, Institute of Astronomy, Univ. of Tokyo (Japan)
Yuji Ikeda, Photocoding (Japan)
Atsushi Minami, Institute of Astronomy, Univ. of Tokyo (Japan)
Kentaro Motohara, Institute of Astronomy, Univ. of Tokyo (Japan)
Naoto Kobayashi, Institute of Astronomy, Univ. of Tokyo (Japan)


Published in SPIE Proceedings Vol. 7014:
Ground-based and Airborne Instrumentation for Astronomy II
Ian S. McLean; Mark M. Casali, Editor(s)

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