IRMOS: an infrared multi-object spectrometer using a MEMs micromirror array

John W. MacKenty; Matthew A. Greenhouse; Richard F. Green; Leroy Sparr; Raymond G. Ohl IV; Robert S. Winsor

doi:10.1117/12.461484

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7 March 2003 IRMOS: an infrared multi-object spectrometer using a MEMS micro-mirror array

John W. MacKenty, Matthew A. Greenhouse, Richard F. Green, Leroy Sparr, Raymond G. Ohl IV, Robert S. Winsor

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Proceedings Volume 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes; (2003) https://doi.org/10.1117/12.461484
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

The Infrared Multi-Object Spectrometer (IRMOS) is an innovative near-IR instrument approaching completion. IRMOS will provide R~300, 1000, and 3000 spectroscopy in the J, H, and K bands plus R~1000 in Z together with imaging in all bands. Using a Texas Instruments 848x600 element DMD as a micro mirror array to synthesize slits in an imaging spectrometer obtaining up to 100 simultaneous spectra will be possible. Designed for the KPNO 4 and 2.2 meter telescopes, IRMOS will provide 3x2 and 6x4 arc minute fields of view on these telescopes. IRMOS is constructed mainly of 6061 Aluminum using diamond machined optics which has permitted a complex, compact, all reflective optical design. We describe the design and status of IRMOS, summarize its expected performance, and discuss several interesting aspects of its development and the use of TI DMD devices. IRMOS is a joint project of the Space Telescope Science Institute, the NASA Next Generation Space Telescope Project, and the Kitt Peak National Observatory.

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John W. MacKenty, Matthew A. Greenhouse, Richard F. Green, Leroy Sparr, Raymond G. Ohl IV, and Robert S. Winsor "IRMOS: an infrared multi-object spectrometer using a MEMS micro-mirror array", Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003); https://doi.org/10.1117/12.461484

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