Defect and dope selective of transmission properties of 2D photonic crystal

The effects of the defect and doping on the transmission properties are investigated in two-dimensional photonic crystal (PC) with triangular rods using the finite difference time domain (FDTD) method. The results show that the width and the central position of the photonic band gap (PBG) depend on...

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Bibliographic Details
Published in:Optik (Stuttgart) 2010-12, Vol.121 (23), p.2133-2136
Main Authors: Yan, Ming-Bao, Gong, Qian, Wang, Hai-Long
Format: Article
Language:English
Subjects:
Crystal defects
Defect
Doping
Energy gaps (solid state)
Exact sciences and technology
Finite difference time domain method
Fundamental areas of phenomenology (including applications)
Optical materials
Optics
Photonic bandgap materials
Photonic crystals
Physics
Refractive index
Refractivity
Rods
Two dimensional
Two-dimension triangular rod
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Summary:The effects of the defect and doping on the transmission properties are investigated in two-dimensional photonic crystal (PC) with triangular rods using the finite difference time domain (FDTD) method. The results show that the width and the central position of the photonic band gap (PBG) depend on the thickness of rods with defect or composite-defect, and the refractive index of doped dielectric rods. The transmission properties of composite-defect combined with doping are further investigated. The thinner the nested concentric triangular rod and the smaller the refractive index is, the wider the band gaps is.
ISSN:0030-4026
1618-1336
DOI:10.1016/j.ijleo.2009.07.017