RT Journal Article
T1 Design and testing of AR coatings for MEGARA optics
A1 Gil de Paz, Armando
A1 Gallego Maestro, Jesús
A1 otros, ...
AB We present the antireflection coatings of the optical elements of MEGARA, the new integral field and multi-object spectrograph for the Gran Telescopio Canarias. We describe the methodology for optimizing the solutions. We also present the results of the final deposited coatings. The main optics require broadband coatings in the range from 370 nm to 980 nm for different materials with a mean R<1.3% at specific angles of incidence in each surface. For each material a specific arrangement of thicknesses of the same eight layers were produced and tested. For the spectrograph pupil elements four layer coatings were designed and produced R<0.3%. The design of main optics and pupil elements coatings have been shared between INAOE and CIO. The coating depositions have been performed at CIO in the Integrity 39 Denton Vacuum Deposition System. The main optics final coatings fulfill MEGARA requirements.
PB SPIE-Int Soc Optical Engineering
SN 0277-786X
YR 2016
FD 2016
LK https://hdl.handle.net/20.500.14352/23226
UL https://hdl.handle.net/20.500.14352/23226
LA eng
NO © 2016 SPIE. Artículo firmado por 8 autores. Conference on Ground-Based and Airborne Instrumentation for Astronomy (VI. 2016. Edinburgh, Scotland)
DS Docta Complutense
RD 27 abr 2024