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Article Dans Une Revue Optics Express Année : 2015

Ultra-wide-range measurements of thin-film filter optical density over the visible and near-infrared spectrum

Michel Lequime
Simona Liukaityte
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Myriam Zerrad
Claude Amra

Résumé

We present the improved structure and operating principle of a spectrophotometric mean that allows us for the recording of the transmittance of a thin-film filter over an ultra-wide range of optical densities (from 0 to 11) between 400 and 1000 nm. The operation of this apparatus is based on the combined use of a high power supercontinuum laser source, a tunable volume hologram filter, a standard monochromator and a scientific grade CCD camera. The experimentally recorded noise floor is in good accordance with the optical density values given by the theoretical approach. A demonstration of the sensitivity gain provided by this new set-up with respect to standard spectrophotometric means is performed via the characterization of various types of filters (band-pass, long-pass, short-pass, and notch).

Dates et versions

hal-01276241 , version 1 (19-02-2016)

Identifiants

Citer

Michel Lequime, Simona Liukaityte, Myriam Zerrad, Claude Amra. Ultra-wide-range measurements of thin-film filter optical density over the visible and near-infrared spectrum. Optics Express, 2015, 23 (20), pp.26863-26878. ⟨10.1364/OE.23.026863⟩. ⟨hal-01276241⟩
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