Abstract

Defect is built as that in the semiconductor when some metal posts are withdrawn regularly from the two-dimensional (2D) photonic crystal (PC) formed by triangular arrays of metal posts. Such defect can be used to design cavity. The relation among the lattice, the radius of post, the mode and frequency of this kind of cavity is researched in this paper. The design of this kind of cavity is introduced.

© 2005 Chinese Optics Letters

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