Design optical filters using two different synthesis approaches

Abstract

It is difficult to find any modern optical system that does not have
components with single or multiple layers of optical coatings, scientists
and engineers use optical coating filter based on the interference property
of electromagnetic wave to achieve a desired reflectivity of light over a
range of frequencies.
In this paper we propose a two different efficient methods, needle
optimization method and genetic algorithms (GAs), for synthesis optical
coatings. The task was to overcome the difficulty to obtain high quality
coatings, with optical constants and low number of layers and
demonstrate that a highly efficient global optimization of optical filter can
be performed. Results includes the comparison between the results needle
approach in frame Open Filter (new software) and the results of genetic
algorithm technique , it is considered the first comparison between Open
Filter and (GAs). In addition they show us the advantage and
disadvantage of each approach in design high reflection optical filters