The optical design of CHARIS: an exoplanet IFS for the Subaru telescope

• DOI: 10.1117/12.2024070
• Publication Date: 2013-09-26T12:49:16Z
• Authors: Mary Anne Peters-...; Tyler D. Groff; N. Jeremy Kasdin; Dave Driscoll; Michael Galvin; Allen Foster; Michael A. Carr; Dave LeClerc; Rad Fagan; Michael W. McElwain; Gillian Knapp; Timothy Brandt; Markus Janson; Olivier Guyon; Nemanja Jovanovic; Frantz Martinache; Masahiko Hayashi; Naruhisa Takato
• Keywords: Subaru Telescope; Integral field spectrograph; Coronagraph; Spectral resolution; First light

High-contrast imaging techniques now make possible both and spectroscopy of planets around nearby stars. We present the optical design for Coronagraphic High Angular Resolution Imaging Spectrograph (CHARIS), a lenslet-based, cryogenic integral field spectrograph (IFS) exoplanets on Subaru telescope. The IFS will provide spectral information 138x138 spatial elements over 2.07 arcsec x view (FOV). CHARIS operate in near infrared (lambda = 1.15 - 2.5 microns) feature two resolution modes R 18 (low-res mode) 73 (high-res mode). Taking advantage telescope adaptive optics systems coronagraphs (AO188 SCExAO), sufficient contrast to obtain spectra young self-luminous Jupiter-mass exoplanets. undergo CDR October 2013 is projected have first light by end 2015. report here current its unique innovations.