2008_08_Mentuch_etal_10.1117_12.789692 - Optical-mechanical...

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Optical-mechanical operation of the F2T2 Filter: a tunable filter designed to search for First Light Erin Mentuch a,b , Alan Scott b,c , Roberto Abraham a , Elizabeth Barton d , Matthew Bershady e , Joss Bland-Hawthorn f , David Crampton g , René Doyon h , Steve Eikenberry i , Mike Gladders j , Karl Glazebrook k , Joe Jenson i , Jeff Julian i , Roger Julian i , Jean-Paul Kneib l , David Loop g , Nick Raines i , Neil Rowlands b , and JD Smith m a Department of Astronomy & Astrophysics, University of Toronto b COM DEV Canada c Centre for Research in Earth & Space Science, York University d Department of Physics & Astonomy, University of California, Irvine e Department of Astronomy, University of Wisconsin f Anglo-Australian Observatory, Australia g Herzberg Institute of Astrophysics, National Research Council Canada h Departement de Physique, Université de Montreal i Department of Astronomy, University of Florida j Department of Astronomy and Astrophysics, University of Chicago k Centre for Astrophysics & Supercomputing, Swinburne University of Technology l Laboratoire d’Astrophysique de Marseilles m Ritter Astrophysical Observatory, University of Toledo ABSTRACT The Flamingos-2 Tandem Tunable filter is a tunable, narrow-band filter, consisting of two Fabry-Perot etalons in series, capable of scanning to any wavelength from 0.95 to 1.35 microns with a spectral resolution of R~800. It is an accessory mode instrument for the near-IR Flamingos-2 imaging-spectrograph designed for the Gemini South 8m Observatory and will be fed through the upcoming Multi-Conjugate Adaptive Optics feed. The primary science goal of the F2T2 filter is to perform a ground-based search for the first star forming regions in the universe at redshifts of 7 < z < 11. The construction of the F2T2 filter is complete and it is currently in its calibration and commissioning phases. In this proceeding, we describe the calibration and performance of the instrument. Keywords: Fabry-Perot, Tandem Etalon, Gemini, First Light, F2T2, Flamingos-2 1. INTRODUCTION The Flamingos-2 Tandem Tunable filter i (F2T2) is an accessory mode instrument designed for the Flamingos-2 ii near-IR wide field imager and multi-object spectrometer, built by the University of Florida, for use on the Gemini South 8m telescope. F2T2 is a 60 mm-clear aperture, IR-optimized, air spaced, tandem-etalon tunable Fabry-Perot filter, which will investigate the first sources of star formation in the Universe. The optical components and electronics for the device were designed and assembled by COM DEV Canada. Construction of the device has been funded by a Steacie Fellowship and a Canada Foundation for Innovation Career Award given to the project's Canadian-PI (R. Abraham). In many aspects, the F2T2 filter is a ground-based analog to the Tunable Filter Imager
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This note was uploaded on 01/22/2012 for the course AST 1022l taught by Professor Colon during the Fall '07 term at University of Florida.

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2008_08_Mentuch_etal_10.1117_12.789692 - Optical-mechanical...

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