Two-dimension photonic crystal complete bandgap

被引：1

作者：

Liu G.-Y. ^{[1
,2
]}

Ning Y.-Q. ^{[1
]}

Zhang L.-S. ^{[1
,2
]}

Wang W. ^{[1
,2
]}

Sun Y.-F. ^{[1
]}

Qin L. ^{[1
]}

Liu Y. ^{[1
]}

Wang L.-J. ^{[1
]}

机构：

[1] Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

[2] Graduate University of the Chinese Academy of Sciences

来源：

Faguang Xuebao/Chinese Journal of Luminescence | 2011年 / 32卷 / 02期

关键词：

Complete band gap; Photonic crystal; Plane wave expansion method;

D O I：

10.3788/fgxb20113202.0169

中图分类号：

学科分类号：

摘要：

Photonics crystal (PhC) is the material in which the refractive index changes periodically and the PhC has a band structure and location mode, this structure can control light. In order to study two-dimensional PhC complete band gap, in this paper, plane wave expansion method was employed to simulate four types of two-dimensional PhC. We study the relationship between the complete bandgap and the variation of column radius r with a fixed lattice constant. We found that hexagonal lattice PhC air holes complete band gap appears in the r=0.42~0.50 μm range, complete band gap width does not increase with the air column radiu r, but there is a maximum width. The maximum band gap width is Δω1=0.08(ωa/2πc).When air column radiu r=0.47~0.50 μm,square lattice PhC exists complete bandgap, the band gap width Δω2=0.02(ωa/2πc).And complete band gap center frequency increases with r. Results indicate that for hexagonal and square GaAs columnar PhC there is no complete band gap.

引用

页码：169 / 173

页数：4

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