Large forbidden angles for a two-dimensional photonic crystal of connected-honeycomb lattice

Ya Chih Tsai; Jian Hao Wong; Shih-Chuan Gou

doi:10.1016/j.optcom.2009.10.025

Large forbidden angles for a two-dimensional photonic crystal of connected-honeycomb lattice

Ya Chih Tsai, Jian Hao Wong, Shih-Chuan Gou

Graduate Institute of Photonics

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The off-plane band structures of a two-dimensional photonic crystals of connected-honeycomb lattice are calculated by the plane-wave expansion method. To investigate how the band gaps vary with the off-plane angle, an effective refractive-index model is employed to work out the corresponding angular gap map. We find that the connected-honeycomb lattice can provide forbidden angles taking up as much as 58.6% of the solid angle. The result will be helpful in the design of photonics devices incorporating two-dimensional photonic crystal structures.

Original language	English
Pages (from-to)	400-404
Number of pages	5
Journal	Optics Communications
Volume	283
Issue number	3
DOIs	https://doi.org/10.1016/j.optcom.2009.10.025
Publication status	Published - 2010 Feb 1

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/j.optcom.2009.10.025

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Cite this

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abstract = "The off-plane band structures of a two-dimensional photonic crystals of connected-honeycomb lattice are calculated by the plane-wave expansion method. To investigate how the band gaps vary with the off-plane angle, an effective refractive-index model is employed to work out the corresponding angular gap map. We find that the connected-honeycomb lattice can provide forbidden angles taking up as much as 58.6% of the solid angle. The result will be helpful in the design of photonics devices incorporating two-dimensional photonic crystal structures.",

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AB - The off-plane band structures of a two-dimensional photonic crystals of connected-honeycomb lattice are calculated by the plane-wave expansion method. To investigate how the band gaps vary with the off-plane angle, an effective refractive-index model is employed to work out the corresponding angular gap map. We find that the connected-honeycomb lattice can provide forbidden angles taking up as much as 58.6% of the solid angle. The result will be helpful in the design of photonics devices incorporating two-dimensional photonic crystal structures.

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