A high-resolution spectrograph for the solar telescope GREGOR

Manuel Collados; A. Calcines; J. J. Díaz; E. Hernnádez; R. López; E. Páez

doi:10.1117/12.790060

9 July 2008 A high-resolution spectrograph for the solar telescope GREGOR

Manuel Collados, A. Calcines, J. J. Díaz, E. Hernnádez, R. López, E. Páez

Proceedings Volume 7014, Ground-based and Airborne Instrumentation for Astronomy II; 70145Z (2008) https://doi.org/10.1117/12.790060
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

This communication shows the design, layout, mounting and start-up of a high-resolution grating spectrograph for VIS-NIR at GREGOR 1.5m Solar Telescope (Observatorio del Teide, Tenerife, Canary Islands). The instrument will be used together with the Tenerife Infrared Polarimeter (TIP-II). As special characteristics of the design, the following can be mentioned: The first folding mirror of the spectrograph can be placed in two positions to take into account the change of the optical axis introduced by the polarizing beamsplitter of TIP-II. This way the instrument is optimally aligned when used in situations with and without polarimeter. The second and third mirrors rotate the image of the entrance slit, making it parallel to the grating grooves. A system of prisms are used to adequately fit onto the detector the two orthogonal polarized beams generated by the polarimeter. Two output beams are possible, to make feasible simultaneous visible and near-infrared observations.

Citation Download Citation

Manuel Collados, A. Calcines, J. J. Díaz, E. Hernnádez, R. López, and E. Páez "A high-resolution spectrograph for the solar telescope GREGOR", Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 70145Z (9 July 2008); https://doi.org/10.1117/12.790060

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