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Proceedings Paper

Small solutions to the large telescope problem: a massively replicated MEMS spectrograph
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Paper Abstract

In traditional seeing-limited observations the spectrograph aperture scales with telescope aperture, driving sizes and costs to enormous proportions. We propose a new solution to the seeing-limited spectrograph problem. A massively fiber-sliced congfiguration feeds a set of small diffraction-limited spectrographs. We present a prototype, tunable, J-band, diffraction grating, designed specifically for Astronomical applications: The grating sits at the heart of a spectrograph, no bigger than a few inches on a side. Throughput requirements dictate using tens-of-thousands of spectrographs on a single 10 to 30 meter telescope. A full system would cost significantly less than typical instruments on 10m or 30m telescopes.

Paper Details

Date Published: 23 July 2008
PDF: 9 pages
Proc. SPIE 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation, 70182I (23 July 2008); doi: 10.1117/12.787012
Show Author Affiliations
Nicholas P. Konidaris, Univ. of California, Santa Cruz (United States)
Joel A. Kubby, Univ. of California, Santa Cruz (United States)
Andrew I. Sheinis, Univ. of Wisconsin, Madison (United States)

Published in SPIE Proceedings Vol. 7018:
Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation
Eli Atad-Ettedgui; Dietrich Lemke, Editor(s)

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