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Proceedings Paper

Development of mid-infrared spectrometer with an image slicer (MIRSIS) for ground-based astronomy: developing optical and mechanical mounts
Author(s): Yoshiko Kataza Okamoto; Hirokazu Kataza; Keigo Sato; Kei Manabe; Kenji Mitsui; Norio Okada; Mitsuhiro Fukushima; Tetsuo Nishino; Koji Tomita; Masamune Tosa; Takashi Onaka
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Paper Abstract

Mid-Infrared Spectrometer with an Image Slicer (MIRSIS) is a 10micron band spectrometer for ground-based observations. Based on the optical design reported in Okamoto et al. (2006), we recently developed most of optical elements and their mounts. There, we adopted designs based on an ultra-precision cut for the slice mirrors and the pupil mirrors. We also designed and partly manufactured the optical parts with switching/adjusting mechanism with cryogenic step motors. Since MIRSIS has a very complicated stereoscopic configuration of optical elements, we developed a method to adjust the optical alignment where relative positional markers and a three-dimensional measuring system are combined. We confirmed that we can achieve position and angular adjustment with error down to 0.1mm and 0.05degree through alignment test with a pair of mirrors.

Paper Details

Date Published: 9 July 2008
PDF: 10 pages
Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 70142B (9 July 2008); doi: 10.1117/12.788575
Show Author Affiliations
Yoshiko Kataza Okamoto, Ibaraki Univ. (Japan)
Hirokazu Kataza, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (Japan)
Keigo Sato, Ibaraki Univ. (Japan)
Kei Manabe, Ibaraki Univ. (Japan)
Kenji Mitsui, National Astronomical Observatory of Japan (Japan)
Norio Okada, National Astronomical Observatory of Japan (Japan)
Mitsuhiro Fukushima, National Astronomical Observatory of Japan (Japan)
Tetsuo Nishino, National Astronomical Observatory of Japan (Japan)
Koji Tomita, Ibaraki Univ. (Japan)
Masamune Tosa, Ibaraki Univ. (Japan)
Takashi Onaka, 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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