Design of an infrared integral field spectrograph specialized for direct imaging of exoplanets

Jean-François Lavigne

doi:10.1117/12.692303

18 July 2006 Design of an infrared integral field spectrograph specialized for direct imaging of exoplanets

Jean-François Lavigne

Proceedings Volume 6342, International Optical Design Conference 2006; 63421M (2006) https://doi.org/10.1117/12.692303
Event: International Optical Design Conference 2006, 2006, Vancouver, BC, Canada

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.

Citation Download Citation

Jean-François Lavigne "Design of an infrared integral field spectrograph specialized for direct imaging of exoplanets", Proc. SPIE 6342, International Optical Design Conference 2006, 63421M (18 July 2006); https://doi.org/10.1117/12.692303

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