中国物理B ›› 2007, Vol. 16 ›› Issue (6): 1689-1693.doi: 10.1088/1009-1963/16/6/034

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Controlling the focusing properties of a triangular-lattice metallic photonic-crystal slab

冯帅1, 王义全1, 李志远2, 程丙英2, 张道中2   

  1. (1)Academy of Physics and Electronic Engineering, Central University for Nationalities, Beijing 100081, China; (2)Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • 收稿日期:2006-10-06 修回日期:2006-11-08 出版日期:2007-06-20 发布日期:2007-06-20
  • 基金资助:
    Project supported by the National Key Basic Research Special Foundation of China (Grant Nos 2004CB719804 and 2001CB610402), the National Natural Science Foundation of China (Grant Nos 10404036 and 10674185). The Support from the Supercomputing Center, CNIC, CAS is Also Acknowledged.

Controlling the focusing properties of a triangular-lattice metallic photonic-crystal slab

Feng Shuai(冯帅)a)†, Wang Yi-Quan (王义全)a), Li Zhi-Yuan(李志远)b), Cheng Bing-Ying(程丙英)b), and Zhang Dao-Zhong(张道中)b)   

  1. a Academy of Physics and Electronic Engineering, Central University for Nationalities, Beijing 100081, China; b Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2006-10-06 Revised:2006-11-08 Online:2007-06-20 Published:2007-06-20
  • Supported by:
    Project supported by the National Key Basic Research Special Foundation of China (Grant Nos 2004CB719804 and 2001CB610402), the National Natural Science Foundation of China (Grant Nos 10404036 and 10674185). The Support from the Supercomputing Center, CNIC, CAS is Also Acknowledged.

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摘要： This paper studies the focusing properties of a two-dimensional photonic crystal (PC) slab consisting of a triangular lattice of metallic cylinders immersed in a dielectric background. Through the analysis of the equifrequency-surface contours and the field patterns of a point source placed in the vicinity of the PC slab, it finds that both the image distance and image quality can be controlled by simply adjusting the refractive index of the background material.

Abstract: This paper studies the focusing properties of a two-dimensional photonic crystal (PC) slab consisting of a triangular lattice of metallic cylinders immersed in a dielectric background. Through the analysis of the equifrequency-surface contours and the field patterns of a point source placed in the vicinity of the PC slab, it finds that both the image distance and image quality can be controlled by simply adjusting the refractive index of the background material.

Key words: negative refraction, photonic crystal

中图分类号:  (Photonic bandgap materials)

  • 42.70.Qs
42.25.Gy (Edge and boundary effects; reflection and refraction) 61.50.Ah (Theory of crystal structure, crystal symmetry; calculations and modeling) 78.20.Ci (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))