International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2572

Introduction

Optimum designing of thin film filter layers of SiO2 and SnTe based on optical particle swarm opimizer

H. Arabshahi1* and M. Asmari2
1Physics Department, Ferdowsi University of Mashhad, Mashhad, Iran. 2Climatology of Atmospheric Disasters Group, Climatological Research Institute, P. O. Box 91735–676, Mashhad, Iran.
Email: [email protected]

  •  Accepted: 19 November 2009
  •  Published: 31 January 2010

Abstract

Optical design of multilayer filter has been carried out using a particle swarm optimizer algorithm. The filters are designed to work for wavelength in the range of 1550 - 1600 nm. Our calculation results show good convergence rate and higher performance in comparison with results based on genetic algorithm. The calculated result for band pass filter layers of Sio2 and SnTe have also shown that the transmittance parameter is about 0.994. The results for narrow filters show that the values of S and P reflectance parameter are in fair agreement with other methods and average transmittance parameter is about 0.985 which is 25% better than flip-flop results.

 

Key words: Optical design, genetic algorithm, narrow filters, transmittance.

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