Diffraction limited high-contrast imaging with the novel lenses-based integral field unit concept BIGRE

J. Antichi; R. G. Gratton; R. U. Claudi; E. Giro; D. Mesa; V. De Caprio; S. Andolfo; A. Boccaletti; K. Dohlen; J.-L. Beuzit

doi:10.1117/12.797675

27 September 2008 Diffraction limited high-contrast imaging with the novel lenses-based integral field unit concept BIGRE

J. Antichi, R. G. Gratton, R. U. Claudi, E. Giro, D. Mesa, V. De Caprio, S. Andolfo, A. Boccaletti, K. Dohlen, J.-L. Beuzit

Author Affiliations +

Proceedings Volume 7100, Optical Design and Engineering III; 71001J (2008) https://doi.org/10.1117/12.797675
Event: Optical Systems Design, 2008, Glasgow, Scotland, United Kingdom

Abstract

Integral field spectroscopy (IFS) is extremely useful for high-contrast imaging purposes and integral field units (IFU) based on a matrix of lenses are suitable to guarantee low level of differential aberrations among the array of light footprints reaching the detector. To this purpose a new optical concept (BIGRE) for the lenses array adopted in integral field spectroscopy is here fully described, and characterized in the working case of two IFS instruments devoted to high-contrast imaging of extrasolar planets: SPHERE and EPICS, respectively for a 10 meter class telescope (VLT) and a 40 meter class (E-ELT) telescope. The aim of this work is the explanation of the BIGRE optical concept and its implementation on two IFS optical designs, optimized respectively for SPHERE and EPICS.

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J. Antichi, R. G. Gratton, R. U. Claudi, E. Giro, D. Mesa, V. De Caprio, S. Andolfo, A. Boccaletti, K. Dohlen, and J.-L. Beuzit "Diffraction limited high-contrast imaging with the novel lenses-based integral field unit concept BIGRE", Proc. SPIE 7100, Optical Design and Engineering III, 71001J (27 September 2008); https://doi.org/10.1117/12.797675

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KEYWORDS

Iterated function systems

Telescopes

Optical spheres

Coronagraphy

Diffraction

Sensors

Spatial frequencies

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