Influence of incident angle on the defect mode of locally doped photonic crystal

By means of a transfer matrix method, this paper deduces the transmittance calculation equation of light travelling in locally doped （including one defect layer） mirror heterostructure （ABCCBA）PD（ABCCBA）q photonic crystals. In the cases of defect layers being either introduced or not introduced, an...

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Bibliographic Details
Published inJournal of semiconductors Vol. 34; no. 11; pp. 11 - 14
Main Author 王瑾 温廷敦 许丽萍 刘祖凡
Format Journal Article
LanguageEnglish
Published 01.11.2013
Subjects
Crystal defects
Energy gaps (solid state)
Filtering
Filtration
Mathematical analysis
Photonic crystals
Photons
Semiconductors
光子带隙
入射角度
多通道滤波
帕金森病
掺杂光子晶体
缺陷层
缺陷模
透射率
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Summary:By means of a transfer matrix method, this paper deduces the transmittance calculation equation of light travelling in locally doped （including one defect layer） mirror heterostructure （ABCCBA）PD（ABCCBA）q photonic crystals. In the cases of defect layers being either introduced or not introduced, an ORIGIN simulation shows the influence of incident angle change on the number of photon band gap, bandwidth and defect mode numbers. Studies indicate that when such photonic crystals have 8 mirror cycles and the thickness of defect layer D meets nDdD = X0/2 or nodD = 4）~0, the photonic crystal defect mode transmission peak changes significantly. Also, with the change of incident angle, the number of defect mode transmission peaks changes. By altering incident angle and defect layer thickness, we can get photon band gaps and defect mode transmission peaks at different frequency domains and different relative angular frequencies. This provides theoretical reference for achieving light wave multi-channel filtering and tunable filtering.
Bibliography:11-5781/TN
Wang Jin, Wen Tingdun, Xu Liping,Liu Zufan（1 Department of Physics, North University of China, Taiyuan 030051, China 2China Aviation Lithium Battery Co., Ltd, Luoyang 471000, China）
photonic crystal; defect mode; incident angle; locally doped; transfer matrix method
By means of a transfer matrix method, this paper deduces the transmittance calculation equation of light travelling in locally doped （including one defect layer） mirror heterostructure （ABCCBA）PD（ABCCBA）q photonic crystals. In the cases of defect layers being either introduced or not introduced, an ORIGIN simulation shows the influence of incident angle change on the number of photon band gap, bandwidth and defect mode numbers. Studies indicate that when such photonic crystals have 8 mirror cycles and the thickness of defect layer D meets nDdD = X0/2 or nodD = 4）~0, the photonic crystal defect mode transmission peak changes significantly. Also, with the change of incident angle, the number of defect mode transmission peaks changes. By altering incident angle and defect layer thickness, we can get photon band gaps and defect mode transmission peaks at different frequency domains and different relative angular frequencies. This provides theoretical reference for achieving light wave multi-channel filtering and tunable filtering.
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SourceType-Scholarly Journals-1
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ISSN:1674-4926
DOI:10.1088/1674-4926/34/11/112003