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Proceedings Paper

Performance of MEGARA spectrograph optical elements
Author(s): E. Carrasco; G. Páez; R. Izazaga; J. de la Luz Hurtado; C. Pérez; F. Granados; D. Aguirre; E. Percino; J. Reyes; A. Gil de Paz; J. Gallego; J. Iglesias
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Paper Abstract

MEGARA is the new IFU and multiobject spectrograph for Gran Telescopio Canarias. The spectograph will offer spectral resolution Rfwhm~ 6,000, 12,000 and 18,700. Except for the optical fibers and microlenses, the complete MEGARA optical system has been manufactured in Mexico. This includes a field lens, a 5-lenses collimator, a 7-lenses camera and a complete set of volume phase holographic gratings with 36 flat windows and 24 prisms. All these elements are very large and complex, with very efficient antireflection coatings. Here the optical performance of MEGARA collimator and camera lenses and the field lens is presented.

Paper Details

Date Published: 4 August 2016
PDF: 19 pages
Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 990885 (4 August 2016); doi: 10.1117/12.2232208
Show Author Affiliations
E. Carrasco, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
G. Páez, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
R. Izazaga, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
J. de la Luz Hurtado, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
C. Pérez, Ctr. de Investigaciones en Óptica, A.C. (Mexico)
F. Granados, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
D. Aguirre, Univ. Autónoma de México (Mexico)
E. Percino, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
J. Reyes, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
A. Gil de Paz, Univ. Complutense de Madrid (Spain)
J. Gallego, Univ. Complutense de Madrid (Spain)
J. Iglesias, Instituto de Astrofísica de Andalucía (Spain)


Published in SPIE Proceedings Vol. 9908:
Ground-based and Airborne Instrumentation for Astronomy VI
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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