Share Email Print

Proceedings Paper

Development of a mid-infrared high-dispersion spectrograph (IRHS) for the Subaru Telescope
Author(s): Hitoshi Tokoro; Masashi Atarashi; Masako Omori; Takashi Machida; Shigeyuki Hirabayashi; Hideomi Kobayashi; Yasuhiro Hirahara; Tadashi Masuda; Noboru Ebizuka; Kentaro Kawaguchi
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A design of prototype Infra-Red High-dispersion Spectrograph (IRHS) is described. IRHS is a cryogenic echelle spectrometer for 8.2-m Subaru Telescope, which will operate at 8 to 13 μm with resolving power of 200,000. To achieve such a high dispersion and broad bandwidth, a Germanium immersion echelle grating was adopted. As a preliminary step, we started to develop the proto-type of IRHS (ProtoIRHS) with currently available Ge immersion grating (30x30x72 mm) and one 512x412 Si:As impurity band detector array, which will provide the maximum resolving power of 50,000 at 10 μm with slit width of 0.612 arcseconds (0.48 mm) and two-pixels sampling.

Paper Details

Date Published: 7 March 2003
PDF: 10 pages
Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003); doi: 10.1117/12.461936
Show Author Affiliations
Hitoshi Tokoro, Nagoya Univ. (Japan)
Masashi Atarashi, Nagoya Univ. (Japan)
Masako Omori, Nagoya Univ. (Japan)
Takashi Machida, Nagoya Univ. (Japan)
Shigeyuki Hirabayashi, Nagoya Univ. (Japan)
Hideomi Kobayashi, Nagoya Univ. (Japan)
Yasuhiro Hirahara, Nagoya Univ. (Japan)
Tadashi Masuda, Nagoya Univ. (Japan)
Noboru Ebizuka, The Institute of Physical and Chemical Research/RIKEN (Japan)
Kentaro Kawaguchi, Okayama Univ. (Japan)

Published in SPIE Proceedings Vol. 4841:
Instrument Design and Performance for Optical/Infrared Ground-based Telescopes
Masanori Iye; Alan F. M. Moorwood, Editor(s)

© SPIE. Terms of Use
Back to Top