Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004spie.5492..779b&link_type=abstract
Ground-based Instrumentation for Astronomy. Edited by Alan F. M. Moorwood and Iye Masanori. Proceedings of the SPIE, Volume 5492
Astronomy and Astrophysics
Astronomy
Scientific paper
A novel concept for a very efficient tunable filter for the optical and near infrared is proposed. The filter consists of two parallel volume phase holographic Bragg gratings used in a dispersion-recombination configuration. The passband profile is determined by the first order grating efficiency curve which changes in wavelength according to the angle of incidence. The filter can be continuously tuned over ranges of wavelengths larger than 600 nm by adjusting the tilt of the gratings, while bandwidth can be selected between 0.1 and 200 nm. The conceptual design is presented, along with predicted performances. Potentially useful instruments for large volume surveys and targeted observations are explored, along with application in areas other than astronomy.
Blais-Ouellette Sebastien
Breugel Wil van
Shopbell Patrick Lynn
Smith Roger
Taylor Keith
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