Prototyping of differential optics for the SPHERE IRDIS dual imaging planet finder camera

Details Prototyping of differential optics for the SPHERE IRDIS dual imaging planet finder camera Prototyping of differential optics for the SPHERE IRDIS dual imaging planet finder camera

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008spie.7018e.170d&link_type=abstract

Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation. Edited by Atad-Ettedgui, Eli; Lemke, Dietrich.

Computer Science

1

Scientific paper

The SPHERE (Spectro-Polarimetric High-contrast Exoplanet Research) planet finder instrument for ESO's VLT telescope, scheduled for first light in 2011, aims to detect giant extra-solar planets in the vicinity of bright stars by the aid of an extreme-AO turbulence compensation system and to characterize the objects found through spectroscopic and polarimetric observations. Dual imaging observations within the Y, J, H and Ks atmospheric windows (~0.95 - 2.32μm) will be done by the aid of the IRDIS cryogenic camera. Ensuring sufficiently low level of differential aberrations between the two parallel images is a major concern for this instrument. We describe the prototyping efforts made in order to validate our concept.

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