29 August 2002 Effects of defects and disorder in light propagation in one-dimensional photonic bandgap structures
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Proceedings Volume 4905, Materials and Devices for Optical and Wireless Communications; (2002) https://doi.org/10.1117/12.480981
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China
Abstract
The light localization due to defects and disorder and its effects on light propagation in one-dimensional (1D) photonic band gap (PBG) structures is studied numerically with transfer matrix method. For a defect layer embedded at the center of a I D PBG structure, the simulation results indicated that, the photons will be trapped in the defect region. For a disordered I D PBG structure, a mechanism for extension of the transmission band gap is illustrated with combining the effects of Bragg reflection and Anderson localization. We propose that, analog to disordered semiconductors, there may exist two band gaps in disordered PBG structure: transmission gap and mode-density gap.
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Hong Chen, Hong-Qiang Li, Xin-Jie Qiu, Nian-Hua Liu, Shi-Yao Zhu, "Effects of defects and disorder in light propagation in one-dimensional photonic bandgap structures", Proc. SPIE 4905, Materials and Devices for Optical and Wireless Communications, (29 August 2002); doi: 10.1117/12.480981; https://doi.org/10.1117/12.480981
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