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Optical properties of three-dimensional woodpile photonic crystals composed of circular cylinders with planar defect structures |
Applied Optics, Vol. 50, Issue 36, pp. 6657-6666 (2011)
http://dx.doi.org/10.1364/AO.50.006657
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Abstract
The optical properties of three-dimensional woodpile photonic crystals (PhCs) composed of circular cylinder rods with a planar defect structure at the central layer are theoretically investigated using the parallel finite-difference time-domain method and plane-wave expansion method. Three types of planar defects are introduced into the PhC by alternating respectively the dielectric constant, cylinder diameter, and misalignment of the rods at the defect layer. The transmission spectrum and band diagram of each planar defect structure are systematically studied. The resonance and transmission properties of the defect structures can be characterized by two distinct resonant modes, the defect mode and the band-edge resonant mode, which have been identified by detailed spectrum analysis, calculated mode profiles and field patterns. It is shown that, by modifying the rod diameter or the dielectric constant of materials at the defect layer, the resonant modes can be varied and controlled. Also, by applying dislocation to a layer of dielectric rods, the photonic band edges can be shifted.
© 2011 Optical Society of America
OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.5298) Diffraction and gratings : Photonic crystals
ToC Category:
Diffraction and Gratings
History
Original Manuscript: June 22, 2011
Manuscript Accepted: August 23, 2011
Published: December 16, 2011
Citation
Shih-Hsuan Chung and Jaw-Yen Yang, "Optical properties of three-dimensional woodpile photonic crystals composed of circular cylinders with planar defect structures," Appl. Opt. 50, 6657-6666 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-36-6657
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