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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 3 CONTRIBUTI IN ATTI DI CONVEGNO (Proceedings)
  4. 3.01 Contributi in Atti di convegno
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/28175
Title: Antireflective coatings for the red camera of WEAVE spectrograph
Authors: Ortiz, R.
Carrasco, E.
Páez, G.
Reyes, J.
Hidalgo, Andrea
Dalton, Gavin
Trager, Scott
Lopez Aguerri, J. Alfonso
BONIFACIO, PIERCARLO
VALLENARI, Antonella 
Abrams, Don Carlos
Middleton, Kevin
Issue Date: 2018
Volume: Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III
Editors: Navarro, Ramón ; Geyl, Roland
Series: PROCEEDINGS OF SPIE 
Number: 10706
First Page: 107065G
Abstract: In this work we present the coatings of the spectrograph red camera of WEAVE -the new multiobject survey facility for the 4.2m William Herschel Telescope. The initial requirements of WEAVE red camera lenses, with reflectances as low as 0.4% through the wavelength interval from 590 nm to 959 nm at angles of incidence of 18° +/- 17° represented a challenge for both design and production. Based on initial requirements, several solutions to the same problem were achieved and tested. The customized designs have been continuously improved through theoretical and experimental approximations. From transmittance measurements at normal incidence we developed a method to determine the reflectance at different angles of incidence. We show the designs and coating transmittance obtained for the four glasses on test runs to guarantee that the designs were achievable experimentally. Additionally, we present the reflectance obtained on the lenses of the the first four lenses of WEAVE red camera.
Conference Name: Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III
Conference Place: Austin, Texas, United States
Conference Date: 10-15 June, 2018
URI: http://hdl.handle.net/20.500.12386/28175
URL: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10706/2313955/Antireflective-coatings-for-the-red-camera-of-WEAVE-spectrograph/10.1117/12.2313955.short
ISSN: 0277-786X
ISBN: 9781510619661
DOI: 10.1117/12.2313955
Bibcode ADS: 2018SPIE10706E..5GO
Fulltext: open
Appears in Collections:3.01 Contributi in Atti di convegno

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