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Transmission properties of defect mode in one-dimensional symmetry photonic crystal under one-way stress
Author(s): Yang Li; Yan-ling Han; Di He; Kang Han; Hong Wang; Guang-bin Wu
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Paper Abstract

Using 4×4 transfer matrix method, we investigated the transmission properties of defect mode in one-dimensional photonic crystal. The system can be transformed to be biaxial photonic crystal under one-way stress. It is found that the transmission properties of defect mode are critically depending on the numbers of dielectric layers and degree of asymmetry. For the system without stress, in the case of system with mirror symmetry, the defect mode is appearing gradually and its peak wavelength always keeps stable with the numbers of dielectric layers increasing, and its corresponding transmittance will be sharply decrease from a constant to zero at the same time. In the case of asymmetry, the defect mode is appearing gradually and its peak wavelength still keeps stable with the asymmetric degree continuously growth. Meanwhile, its transmittance exist an evolution from increase to decrease in this progress, and the maximum transmittance can be obtained at Δm=0 . After applying a fixed one-way stress on the system, the single defect mode will be split into Left-side defect mode (LDM) and Right-side defect mode (RDM). In the case of system with mirror symmetry, the two defect modes are appearing gradually and their peak wavelength always keep constant with the numbers of dielectric layers increasing, respectively, and their corresponding transmittance decrease asynchronously from a constant to zero. In the case of asymmetry, the peak wavelengths of LDM and RDM are being a constant with the changing of asymmetric degree and their corresponding transmittance are synchronously increasing or decreasing with the continuously increasing of asymmetric degree. Particularly, the maximum transmittance of defect mode also can be obtained at Δm=0 . This study provided a theoretical guidance for the best choice of numbers of dielectric layers to design a pressure sensor.

Paper Details

Date Published: 25 October 2017
PDF: 11 pages
Proc. SPIE 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications, 1046427 (25 October 2017); doi: 10.1117/12.2285734
Show Author Affiliations
Yang Li, China Univ. of Geosciences (China)
Yan-ling Han, China Univ. of Geosciences (China)
Di He, China Univ. of Geosciences (China)
Kang Han, China Univ. of Geosciences (China)
Hong Wang, China Univ. of Geosciences (China)
Guang-bin Wu, Shenzhen Polytechnic (China)


Published in SPIE Proceedings Vol. 10464:
AOPC 2017: Fiber Optic Sensing and Optical Communications
Zi-Sen Zhao; Leping Wei; Yanbiao Liao; Weixu Zhang; Desheng Jiang; Wei Wang; Kenneth T. V. Grattan, Editor(s)

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