Influence of material dispersion on defect modes of 1-D photonic crystal

XIONG Cui-xiu; JIANG Lian-jun

doi:10.7510/jgjs.issn.1001-3806.2013.06.008

In order to study influence of material dispersion on defect modes of 1-D photonic crystal, the transmission spectrum of the 1-D photonic crystal with dispersive material was calculated based on optical transmission matrix, and the dispersive material was described by the Lorentz oscillator model. The effect of material dispersion on defect modes of photonic crystals was analyzed. The results show that whether the dispersion of high and low refractive index medium or the dispersion of defect will bring frequency shift or splitting of defect modes; the defect mode will bring red-shift if the optical thickness of dispersive medium is thicker than the thickness of common medium, and the defect mode will bring blue-shift when the optical thickness of dispersive medium is thinner than the thickness of common medium; the most obvious effect of frequency shift of defect modes results from the dispersion of low refractive index medium. The results have certain reference value to the design and research of photonic crystal.

Influence of material dispersion on defect modes of 1-D photonic crystal

1. College of Communication and Electronic Engineering, Hunan City University, Yiyang 413000, China

Received Date: 2013-02-26

Accepted Date: 2013-04-17

Available Online: 2013-11-25

Abstract: In order to study influence of material dispersion on defect modes of 1-D photonic crystal, the transmission spectrum of the 1-D photonic crystal with dispersive material was calculated based on optical transmission matrix, and the dispersive material was described by the Lorentz oscillator model. The effect of material dispersion on defect modes of photonic crystals was analyzed. The results show that whether the dispersion of high and low refractive index medium or the dispersion of defect will bring frequency shift or splitting of defect modes; the defect mode will bring red-shift if the optical thickness of dispersive medium is thicker than the thickness of common medium, and the defect mode will bring blue-shift when the optical thickness of dispersive medium is thinner than the thickness of common medium; the most obvious effect of frequency shift of defect modes results from the dispersion of low refractive index medium. The results have certain reference value to the design and research of photonic crystal.

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Reference (15)

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Influence of material dispersion on defect modes of 1-D photonic crystal

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