A steep bandpass interference filter with FWHM 11nm centered at 1254nm for studying Lyman Alpha signatures of highly redshifted galaxies

Bibcode
2019SPIE11180E..87H
DOI
10.1117/12.2536214
Hull, A.; Brauneck, U.; Gallego, J.; Cardiel, N.; Cabello, C.; Guzmán, R.; Rodríguez-Espinosa, J. M.; Herrero, A.; Mas-Hesse, M.; Salvador, E.; Manrique, A.; Marín-Franch, A.
Referencia bibliográfica

Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series

Fecha de publicación:
7
2019
Número de autores
12
Número de autores del IAC
2
Número de citas
0
Número de citas referidas
0
Descripción
The presented new 1% narrowband filter centered at 1254nm with a FWHM of 11nm required and achieved excellent maximum transmission and deep out of band blocking. Magnetron sputtering was used for the filter coating process. The filter was used in the fully cryogenic near-infrared camera CIRCE of the Gran Telescopio Canarias (GTC) Telescope. The goal of the project is to detect very distant galaxies at the dawn of the Universe. These remote and extremely faint galaxies are selected by their Ly-alpha emission. We report on the spectral and interferometric results of the filter, and provide the spectacular first deep image taken with the 10.4m GTC telescope.
Tipo
Sin árbitro

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