Defect-mode splitting in 1-D mirror magneto-optical photonic crystal

PENG Jiankun; HAN Yanling; WANG Hong; QU Shaohua

doi:10.7510/jgjs.issn.1001-3806.2016.01.017

In order to explore change of transmission spectrum of magneto-optical photonic crystal in external magnetic field, theoretical analysis and simulation calculation were carried out based on 44 transfer matrix method. Simulation results illustrated that when external magnetic field exists, the defect-mode of mirror photonic crystal would split into two modes under the effect of external magnetic field and the number of photonic crystal layers. And two modes are corresponding to the left-hand and the right-hand circular polarization waves respectively. The frequency difference between the left-hand and the right-hand circular polarization waves increases with the increase of external magnetic field. Only when photonic crystal layers are more than seven layers, defect-mode could have high Q value, which means defect-mode splitting can be clearly observed. The tunable feature of magneto-optical photonic crystal can be applied to design new filters.

Defect-mode splitting in 1-D mirror magneto-optical photonic crystal

Corresponding author: HAN Yanling, hylcug@163.com;

1. School of Physics and Electronics, Hubei University of Arts and Science, Xiangyang 441053, China;

2. School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, China;

3. School of Automation, China University of Geosciences, Wuhan 430074, China

Received Date: 2014-10-20

Accepted Date: 2015-01-15

Available Online: 2016-01-25

Abstract: In order to explore change of transmission spectrum of magneto-optical photonic crystal in external magnetic field, theoretical analysis and simulation calculation were carried out based on 44 transfer matrix method. Simulation results illustrated that when external magnetic field exists, the defect-mode of mirror photonic crystal would split into two modes under the effect of external magnetic field and the number of photonic crystal layers. And two modes are corresponding to the left-hand and the right-hand circular polarization waves respectively. The frequency difference between the left-hand and the right-hand circular polarization waves increases with the increase of external magnetic field. Only when photonic crystal layers are more than seven layers, defect-mode could have high Q value, which means defect-mode splitting can be clearly observed. The tunable feature of magneto-optical photonic crystal can be applied to design new filters.

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Reference (15)

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Defect-mode splitting in 1-D mirror magneto-optical photonic crystal

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