Development of new near-infrared filters based on the "sandwich" polymer-chalcogenide glass-polymer composites

Citation
E. Bormashenko et al., Development of new near-infrared filters based on the "sandwich" polymer-chalcogenide glass-polymer composites, OPT ENG, 40(5), 2001, pp. 661-662
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICAL ENGINEERING
ISSN journal
00913286 → ACNP
Volume
40
Issue
5
Year of publication
2001
Pages
661 - 662
Database
ISI
SICI code
0091-3286(200105)40:5<661:DONNFB>2.0.ZU;2-L
Abstract
A new generation of filters are presented that are ideal for blocking visib le light while passing near-infrared radiation. These filters are based on the novel use of selenium-based chalcogenide glasses with a low softening p oint on the one hand, and thermoplastic polymers on the other hand. A techn ology was developed that allows "sandwich" structures to be obtained, which include thin layers of polymers and chalcogenide glasses. The technology p ermits the cutoff edge of filters to be controlled with high accuracy. This can be done either by varying components of the "sandwich" or by varying t he thickness of the chalcogenide glass layer. (C) 2001 society of Photo-Opt ical instrumentation Engineers.