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Design optical filters using two different synthesis approaches | ||
| Journal of Kufa - physics | ||
| Article 1, Volume 3, Issue 1, 2011, Pages 45-58 | ||
| Author | ||
| Alaa Nazar | ||
| 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 | ||
| Keywords | ||
| multilayer optical filter; synthesis methods; needle method interference filters | ||
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