Characteristics of 2D Cylindrical Photonic Crystals Band Gap with Square Lattice

Zhao Xia Wu; Wen Chao Li; Er Dan Gu; Li Fu Wang

doi:10.4028/www.scientific.net/AMR.712-715.302

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 712-715Characteristics of 2D Cylindrical Photonic...

Characteristics of 2D Cylindrical Photonic Crystals Band Gap with Square Lattice

Abstract:

The structure of two-dimensional (2D) photonic crystals (PCs) with square lattice is proposed in this paper, and researches on characteristics of photonic band gap (PBG) are conducted using finite difference time domain (FDTD) method, then the effects of the dielectric constant and the radius of dielectric rods on band gap are analysed, dielectric rods in air (rods/air). The research results indicate that in the case of TE and TM polarization mode, the difference value of dielectric constant of medium and dielectric rods affects forming PBG.The band gap broadens with the difference value increasing. Whats more, the complete band gap (CBG) appears in range of large rods radius structure when dielectric constants of rods are smaller than that of medium.

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Advanced Materials Research (Volumes 712-715)

Pages:

302-305

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.712-715.302

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Online since:

June 2013

Authors:

Zhao Xia Wu, Wen Chao Li, Er Dan Gu, Li Fu Wang

Keywords:

Dielectric Rods, Finite Difference Time Domain (FDTD) Method, Photonic Band Gap, Two-Dimensional Photonic Crystal

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