National Changhua University of Education Institutional Repository : Item 987654321/14845

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NCUEIR > College of Science > Department of Physics > Periodical Articles > Item 987654321/14845

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/14845

Title:	Large Forbidden Angles for a Two-dimensional Photonic Crystal of Connected-honeycomb Lattice
Authors:	Tsai, Ya-Chih;Wong, Jian-Hao;Gou, Shih-Chuan
Contributors:	物理學系
Keywords:	Photonic crystal;Off-plane;Forbidden angle;Honeycomb lattice
Date:	2010-02
Issue Date:	2012-12-10T02:27:27Z
Publisher:	Elsevier
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.
Relation:	Optics Communications, 283(3): 400-404
Appears in Collections:	[Department of Physics] Periodical Articles

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