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http://hdl.handle.net/20.500.12386/28175
Titolo: | Antireflective coatings for the red camera of WEAVE spectrograph | Autori: | 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 |
Data pubblicazione: | 2018 | Titolo del volume in cui è pubblicato il poster: | Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III | Curatore/i del volume in cui è pubblicato il contributo: | Navarro, Ramón ; Geyl, Roland | Serie: | PROCEEDINGS OF SPIE | Numero: | 10706 | Da pagina:: | 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. | Titolo del convegno: | Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III | Luogo del convegno: | Austin, Texas, United States | Periodo del convegno: | 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 |
È visualizzato nelle collezioni: | 3.01 Contributi in Atti di convegno |
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