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Proceedings Paper

Optical design for the 5-to-28-um NGST MIRI spectroscopy channel (MIRI-S)
Author(s): Martyn Wells; Jan-Willem Pel; Anton Schoenmaker; Gillian S. Wright; Peter R. Hastings; Robert Content; Tully Peacocke
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Paper Abstract

MIRI, the mid-IR instrument for NGST is being provided by a collaboration between a consortium of European institutes, ESA, NASA, JPL and US scientists, with the Europeans responsible for the optics module. The instrument will provide diffraction limited imaging and spectroscopic capability over the 5-28μm region with unprecedented sensitivity. In this paper we describe the current optical design of the medium resolution spectroscopy channel (MIRI-S). This uses a novel arrangement of dichroics, image slicers and spectrometers to optimise the division of a limited number of detector pixels between spatial and spectral information whilst working within the tight mass and volume constraints imposed by a space mission. We also present our design for reflective image slicers that are adapted properly for diffraction limited performance to provide a high throughput over the full wavelength range of the instrument.

Paper Details

Date Published: 5 March 2003
PDF: 13 pages
Proc. SPIE 4850, IR Space Telescopes and Instruments, (5 March 2003); doi: 10.1117/12.461633
Show Author Affiliations
Martyn Wells, Royal Observatory Edinburgh (United Kingdom)
Jan-Willem Pel, Groningen Univ. (Netherlands)
ASTRON (Netherlands)
Anton Schoenmaker, ASTRON (Netherlands)
Gillian S. Wright, Royal Observatory Edinburgh (United Kingdom)
Peter R. Hastings, Royal Observatory Edinburgh (United Kingdom)
Robert Content, Univ. of Durham (United Kingdom)
Tully Peacocke, Royal Observatory Edinburgh (United Kingdom)

Published in SPIE Proceedings Vol. 4850:
IR Space Telescopes and Instruments
John C. Mather, Editor(s)

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