The IFS of SPHERE: integration and laboratory performances

R. Claudi; U. Anselmi; P. Bruno; E. Cascone; A. Costille; V. De Caprio; S. Desidera; E. Giro; R. Gratton; L. Lessio; D. Mesa; S. Scuderi; M. Turatto; F. Wildi; A. Baruffolo; R. Dorn; D. Fantinel; G. Finger; J. L. Lizon; E. Sant'Ambrogio; B. Salasnich; Jl. Beuzit; K. Dohlen; P. Puget; M. Kasper; N. Hubin

doi:10.1117/12.924966

24 September 2012 The IFS of SPHERE: integration and laboratory performances

R. Claudi, U. Anselmi, P. Bruno, E. Cascone, A. Costille, V. De Caprio, S. Desidera, E. Giro, R. Gratton, L. Lessio, D. Mesa, S. Scuderi, M. Turatto, F. Wildi, A. Baruffolo, R. Dorn, D. Fantinel, G. Finger, J. L. Lizon, E. Sant'Ambrogio, B. Salasnich, Jl. Beuzit, K. Dohlen, P. Puget, M. Kasper, N. Hubin

Author Affiliations +

Proceedings Volume 8446, Ground-based and Airborne Instrumentation for Astronomy IV; 84468N (2012) https://doi.org/10.1117/12.924966
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

Abstract

SPHERE is an exo-solar planet imager, which goal is to detect giant exo-solar planets in the vicinity of bright stars and to characterize them through spectroscopic and polarimetric observations. It is a complete system with a core made of an extreme-Adaptive Optics (AO) turbulence correction, pupil tracker and NIR and Visible coronagraph devices. At its back end, a differential dual imaging camera and an integral field spectrograph (IFS) work in the Near Infrared (NIR) Y, J, H and Ks bands (0.95≤λ≤2.32 μm) and a high resolution polarization camera covers the visible (0.6≤λ≤0.9 μm). The IFS is a low resolution spectrograph (R~50) which works in the near IR (0.95≤λ≤1.6 μm), an ideal wavelength range for the detection of planetary features. The IFS is based on a new conception microlens array (BIGRE) of 145X145 lenslets designed to reduce as low as possible the contrast. The IFU will cover a field of view of about 1.7 x 1.7 square arcsecs reaching a contrast of 10^-7, giving an high contrast and high spatial resolution "imager" able to search for planet well inside the star PSF. In the last year it has been integrated onto the huge optical bench of SPHERE and fully tested.

Citation Download Citation

R. Claudi, U. Anselmi, P. Bruno, E. Cascone, A. Costille, V. De Caprio, S. Desidera, E. Giro, R. Gratton, L. Lessio, D. Mesa, S. Scuderi, M. Turatto, F. Wildi, A. Baruffolo, R. Dorn, D. Fantinel, G. Finger, J. L. Lizon, E. Sant'Ambrogio, B. Salasnich, Jl. Beuzit, K. Dohlen, P. Puget, M. Kasper, and N. Hubin "The IFS of SPHERE: integration and laboratory performances", Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84468N (24 September 2012); https://doi.org/10.1117/12.924966

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Iterated function systems

Optical spheres

Sensors

Cameras

Near infrared

Stars

Lamps

Show All Keywords

Keywords/Phrases

Search In:

Publication Years