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Proceedings Paper

Conceptual design phase stray light analysis of the MOBIE imaging spectrograph for TMT
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Paper Abstract

The Multi-Object Broadband Imaging Echellette (MOBIE) is the seeing-limited, optical spectrograph planned for the first generation of Thirty Meter Telescope (TMT) instruments1. An end-to-end stray light analysis of the full optical path (telescope to detector array) has been undertaken as a first step towards validating the design concept with regard to stray light requirements. The geometric, stray light model includes the TMT Calotte-style dome structure, telescope optics, telescope support structures, and the MOBIE instrument itself. The stray light calculations, including assumptions, methodology, and conclusions, are described. Particular emphasis is placed on the stray light contributions from the telescope, atmospheric dispersion corrector, and spectrograph optics. Recommendations for stray light controls internal to the MOBIE instrument are discussed.

Paper Details

Date Published: 20 July 2010
PDF: 13 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77355T (20 July 2010); doi: 10.1117/12.858175
Show Author Affiliations
K. Scott Ellis, Photon Engineering LLC (United States)
Rebecca A. Bernstein, UCO/Lick Observatory, Univ. of California, Santa Cruz (United States)
Bruce C. Bigelow, UCO, Ctr. for Adaptive Optics, Univ. of California, Santa Cruz (United States)


Published in SPIE Proceedings Vol. 7735:
Ground-based and Airborne Instrumentation for Astronomy III
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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