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Proceedings Paper

Thin-film optical filters for spatial frequencies
Author(s): Ivan Moreno; J. Jesus Araiza
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Paper Abstract

Thin-film optical filters selectively absorb, transmit and reflect certain parts of the electromagnetic spectrum. We propose and analyze a new concept of thin-film filter that directly and selectively transmits and reflects certain parts of the spectrum of spatial frequencies. The transmittance and reflectance are short-pass functions or long-pass functions of the angle of incidence. We discuss optical filters designed with dielectric thin films between two right angle prisms to selectively cancel a reflected or transmitted plane wave front for different angles of incidence. A detailed analysis of these optical filters with respect to the index of refraction of the films and prisms, width of films, and polarization of light is presented. Applications on extrasolar planet detection are briefly discussed.

Paper Details

Date Published: 22 October 2004
PDF: 8 pages
Proc. SPIE 5524, Novel Optical Systems Design and Optimization VII, (22 October 2004); doi: 10.1117/12.560045
Show Author Affiliations
Ivan Moreno, Univ. Autonoma de Zacatecas (Mexico)
J. Jesus Araiza, Univ. Autonoma de Zacatecas (Mexico)

Published in SPIE Proceedings Vol. 5524:
Novel Optical Systems Design and Optimization VII
Jose M. Sasian; R. John Koshel; Paul K. Manhart; Richard C. Juergens, Editor(s)

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