Two-dimensional Photonic Crystals with a Large Photonic Band Gap Designed by a Rapid Genetic Algorithm

We used Plane Wave Expansion Method and a Rapid Genetic Algorithm to design two-dimensional photonic crystals with a large absolute band gap. A filling fraction controlling operator and Fourier transform data storage mechanism had been integrated into the genetic operators to get desired photonic cr...

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Bibliographic Details
Published in2006 1st IEEE International Conference on Nano/Micro Engineered and Molecular Systems pp. 475 - 478
Main Authors Chunjuan Gong, Xiongwei Ho
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.01.2006
Subjects
Algorithm design and analysis
band-gaps
Filling
Fourier transforms
Genetic algorithms
Lattices
Memory
Optical control
Photonic band gap
Photonic crystals
Slabs
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Summary:We used Plane Wave Expansion Method and a Rapid Genetic Algorithm to design two-dimensional photonic crystals with a large absolute band gap. A filling fraction controlling operator and Fourier transform data storage mechanism had been integrated into the genetic operators to get desired photonic crystals effectively and efficiently. Starting from randomly generated photonic crystals, the proposed RGA evolved toward the best objectives and yielded a square lattice photonic crystal with the band gap (defined as the gap to mid-gap ratio) as large as 13.25%. Furthermore, the evolutionary objective was modified and resulted in a satisfactory PC for better application to slab system
ISBN:1424401399
9781424401390
DOI:10.1109/NEMS.2006.334803