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PBG structures of novel two-dimensional annular photonic crystals with triangular lattice

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Abstract

The photonic band gap (PBG) structures of four types of annular photonic crystals (PCs) with inner-scatter of rectangular, square, hexagonal and circle shapes are respectively calculated by the plane wave expansion method. The optimal samples with the largest gap-midgap ratio for each structure are obtained by scanning the four parameters: filling ratio f, dielectric constant ɛ1, rotating angle θ of inner-scatters and outside radius R of the air ring. The results show that the band gap can be further maximized by adjusting the structural parameters, and a wide PBG with the gap-midgap ratio of 20.4% is gained in the annular photonic crystal with rectangular inner-scatters.

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Authors and Affiliations

  1. School of Physics and Opto-Electronics Technology, Fujian Normal University, Fuzhou, 350007, China

    Ya-ru Zhang  (张亚茹), Ling-kai Kong  (孔令凯), Zhuo-hong Feng  (冯卓宏) & Zhi-qiang Zheng  (郑志强)

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  1. Ya-ru Zhang  (张亚茹)
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  2. Ling-kai Kong  (孔令凯)
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  3. Zhuo-hong Feng  (冯卓宏)
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  4. Zhi-qiang Zheng  (郑志强)
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Corresponding author

Correspondence to Zhi-qiang Zheng  (郑志强).

Additional information

This work has been supported by the Natural Science Foundation of Fujian Province (No. A0510014) and the Technology Grants of Fujian Province (No. 2006F5025).

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Zhang, Yr., Kong, Lk., Feng, Zh. et al. PBG structures of novel two-dimensional annular photonic crystals with triangular lattice. Optoelectron. Lett. 6, 281–283 (2010). https://doi.org/10.1007/s11801-010-9187-3

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  • DOI: https://doi.org/10.1007/s11801-010-9187-3

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