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Chinese Physics, 2007, Vol. 16(6): 1689-1693    DOI: 10.1088/1009-1963/16/6/034
CLASSICAL AREAS OF PHENOMENOLOGY Prev   Next  

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)
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
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.
Keywords:  negative refraction      photonic crystal  
Received:  06 October 2006      Revised:  08 November 2006      Accepted manuscript online: 
PACS:  42.70.Qs (Photonic bandgap materials)  
  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))  
Fund: 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.

Cite this article: 

Feng Shuai(冯帅), Wang Yi-Quan (王义全), Li Zhi-Yuan(李志远), Cheng Bing-Ying(程丙英), and Zhang Dao-Zhong(张道中) Controlling the focusing properties of a triangular-lattice metallic photonic-crystal slab 2007 Chinese Physics 16 1689

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