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Proceedings Paper

Anisotropic annular photonic crystal structure for large absolute band gap
Author(s): Yong-ping Li; Peng Shi; Kun Huang
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Paper Abstract

A two-dimensional anisotropic annular photonic crystal structure is presented to obtain an absolute photonic band gap. This structure is composed of circular air holes and dielectric rods in a triangular lattice. Uniaxial crystal is introduced to photonic crystal with extraordinary axis parallel to the extension direction of rods. The role of each dielectric and geometric parameter is investigated and a mid-gap ratio above 35% is realized by the parameter optimization. Large gap favors the structure with negative uniaxial veins and positive uniaxial rods. As the air-hole radius scales up, the dielectric-rods radius to sustain the maximum band gap scales down. The positive uniaxial material Tellurium is used to achieve a large polarization-insensitivity gap.

Paper Details

Date Published: 10 September 2010
PDF: 7 pages
Proc. SPIE 7756, Active Photonic Materials III, 77561C (10 September 2010); doi: 10.1117/12.863854
Show Author Affiliations
Yong-ping Li, Key Lab. of Quantum Information (China)
Univ. of Science and Technology of China (China)
Peng Shi, Key Lab. of Quantum Information (China)
Univ. of Science and Technology of China (China)
Kun Huang, Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7756:
Active Photonic Materials III
Ganapathi S. Subramania; Stavroula Foteinopoulou, Editor(s)

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