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Proceedings Paper

Interferential filter design with continuously variable refractive index
Author(s): Andreea Trache; Voicu Lupei; Mihai P. Dinca
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Paper Abstract

The paper briefly presents an original method for design of inhomogeneous thin films which takes into consideration from the beginning the finite character of the optical thickness. At the beginning, the best solution is obtained in terms of the value of a complex function on a certain spectral grid. At the second step, the design is converted in terms of refractive index profile. Special care is taken to minimize the variations of this profile. Then, a program using this method, written as Windows application, is described together with a design example providing a spectral dependence of the reflectance having the shape of Romanian Athenaeum building.

Paper Details

Date Published: 2 July 1998
PDF: 5 pages
Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); doi: 10.1117/12.312733
Show Author Affiliations
Andreea Trache, National Institute for Laser, Plasma, and Radiation Physics (United States)
Voicu Lupei, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Mihai P. Dinca, Univ. of Bucharest (Romania)

Published in SPIE Proceedings Vol. 3405:
ROMOPTO '97: Fifth Conference on Optics
Valentin I. Vlad; Dan C. Dumitras, Editor(s)

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