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.
Received: 06 October 2006
Revised: 08 November 2006
Accepted manuscript online:
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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