中国物理B ›› 2007, Vol. 16 ›› Issue (4): 1057-1061.doi: 10.1088/1009-1963/16/4/033

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Existing conditions of full bandgaps and absolute negative refraction in metallic-dielectric photonic crystal

胡新华1, 董建文2, 汪河洲2   

  1. (1)Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China; (2)State Key Laboratory of Optoelectronic Materials and Technologies, Zhongshan (Sun Yat-Sen) University, Guangzhou 510275, China
  • 收稿日期:2006-05-13 修回日期:2006-07-25 出版日期:2007-04-20 发布日期:2007-04-20
  • 基金资助:
    Project supported by the National 973 (Grant No~2004CB719804) and the National Natural Science Foundation of China.

Existing conditions of full bandgaps and absolute negative refraction in metallic-dielectric photonic crystal

Dong Jian-Wen(董建文)a), Hu Xin-Hua(胡新华)b), and Wang He-Zhou(汪河洲)a)†   

  1. a State Key Laboratory of Optoelectronic Materials and Technologies, Zhongshan (Sun Yat-Sen) University, Guangzhou 510275, China; b Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
  • Received:2006-05-13 Revised:2006-07-25 Online:2007-04-20 Published:2007-04-20
  • Supported by:
    Project supported by the National 973 (Grant No~2004CB719804) and the National Natural Science Foundation of China.

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摘要： This paper has theoretically studied the characteristic frequencies of band structures in two-dimensional metallic-dielectric photonic crystals. It is demonstrated that a large filling fraction benefits the existence of absolute photonic band gap, while a smaller filling fraction benefits an absolute negative refraction band. In addition, it also finds that the relation between the cut-off frequency of E-polarized wave and the filling fraction exceeding 10{\%} is content with a linear increasing function, whose coefficients are exponential to the normalized lattice constant. These investigations have significant implications for tuning the operational frequencies to desired applications and manufacturing photonic crystals.

关键词: metallic-dielectric photonic crystal, absolute photonic band gap, absolute negative refraction

Abstract: This paper has theoretically studied the characteristic frequencies of band structures in two-dimensional metallic-dielectric photonic crystals. It is demonstrated that a large filling fraction benefits the existence of absolute photonic band gap, while a smaller filling fraction benefits an absolute negative refraction band. In addition, it also finds that the relation between the cut-off frequency of E-polarized wave and the filling fraction exceeding 10% is content with a linear increasing function, whose coefficients are exponential to the normalized lattice constant. These investigations have significant implications for tuning the operational frequencies to desired applications and manufacturing photonic crystals.

Key words: metallic-dielectric photonic crystal, absolute photonic band gap, absolute negative refraction

中图分类号:  (Photonic bandgap materials)

  • 42.70.Qs
42.25.Gy (Edge and boundary effects; reflection and refraction) 42.25.Ja (Polarization)