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Study of complete photonic band gap in two-dimensional chessboard of non-Bravais lattice

Wang Jing-Li Chen He-Ming

Study of complete photonic band gap in two-dimensional chessboard of non-Bravais lattice

Wang Jing-Li, Chen He-Ming
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Publishing process
  • Received Date:  18 April 2006
  • Accepted Date:  26 June 2006
  • Published Online:  05 January 2007

Study of complete photonic band gap in two-dimensional chessboard of non-Bravais lattice

  • 1. 南京邮电大学光电工程学院光纤通信研究所,南京 210003

Abstract: A two-dimensional chessboard of non-Bravais lattice is designed in this paper: the square columns in photonic structure of a two-dimensional square lattice are rotated by 45°,and a cylinder is introduced into the center of each lattice unit cell. The complete photonic band gap in two-dimensional chessboard of non-Bravais lattice is calculated by the plane wave expansion method. The result shows that a gap width to midgap frequency ratio Δω/ω of chessboard non-Bravais lattice is almost 5 times that of the ordinary chessboard lattice, and the number of complete photonic band gaps is increased. Comparaed with other compound lattices, the optimal Δω/ω of chessboard non-Bravais lattice is 2.1 times that of a kind of compound lattices.

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