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Proceedings Paper

CODEX optics
Author(s): Bernard Delabre; Antonio Manescau
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Paper Abstract

CODEX is a high resolution spectrograph for the ESO E-ELT. A classical spectrograph can only achieve a resolution of about 120.000 on a 42 m telescope with extremely large echelle gratings and cameras. This paper describes in detail the optical concept of CODEX, which uses only optical elements size similar to those in current high resolution spectrographs. This design is based on slicers, anamorphic beams and slanted VPHG as cross dispersers. In this new version of the CODEX design, no special expensive materials as calcium fluoride or abnormal dispersion glasses are needed. The optical quality is excellent and compatible with 10K x 10K detectors with 10 μm pixels.

Paper Details

Date Published: 20 July 2010
PDF: 11 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77355J (20 July 2010); doi: 10.1117/12.856949
Show Author Affiliations
Bernard Delabre, European Southern Observatory (Germany)
Antonio Manescau, European Southern Observatory (Germany)

Published in SPIE Proceedings Vol. 7735:
Ground-based and Airborne Instrumentation for Astronomy III
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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