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Proceedings Paper

Design of an infrared integral field spectrograph specialized for direct imaging of exoplanets
Author(s): Jean-François Lavigne
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Paper Abstract

Quasi-static speckles are the main source of noise preventing the direct detection of exoplanets around bright stars. We are investigating the use of an infrared (1.5-2.4 μm) integral field spectrograph (IFS) specialised for speckle suppression and the detection of self-luminous giant planets. This paper presents the optical design and laboratory results obtained with a TIGER-type IFS prototype based on a microlens array. A similar IFS will be used for the Gemini Planet Imager (GPI). Preliminary speckle-suppression performances of the IFS are presented along with a prism design that allows keeping a constant spectral resolution over multiple wavebands as it will be required for GPI.

Paper Details

Date Published: 18 July 2006
PDF: 10 pages
Proc. SPIE 6342, International Optical Design Conference 2006, 63421M (18 July 2006); doi: 10.1117/12.692303
Show Author Affiliations
Jean-François Lavigne, Univ. de Montréal (Canada)
Institut National d'Optique (Canada)
Herzberg Institute of Astrophysics (Canada)

Published in SPIE Proceedings Vol. 6342:
International Optical Design Conference 2006
G. Groot Gregory; Joseph M. Howard; R. John Koshel, Editor(s)

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