Collection Of theses on high power laser and plasma physics, 2007, 5 (1): 165, Published Online: Sep. 18, 2008  

Negative refraction in a honeycomb-lattice photonic crystal

Author Affiliations
1 School of Computer and Communication, Hunan University, Changsha 410082, People’s Republic of China
2 Shanghai Institute of Optics and Fine mechanics, Chinese Academy of Sciences, P.O. Box 800-211, Shanghai 201800, People’s Republic of China
3 Department of Optical Science and Engineering, Fudan University, Shanghai 200433, People’s Republic of China
Abstract
In this paper we theoretically investigate a photonic crystal with dielectric rods in a honeycomb lattice. Two left-handed frequency regions are found in the second and third photonic band by using the plane wave expansion method to analyze the photonic band structure and equifrequency contours. Subwavelength imaging by the photonic crystal flat lens are systematically studied by numerical simulations using the multiple scattering method. Different from the photonic crystals with noncircular dielectric rods in air, this structure is almost isotropic at the optimal frequency for superlensing. As a comparison, flat slab focusing is also demonstrated at other frequencies in the two left-handed regions.

Zhixiang Tang, Hao Zhang, Yunxia Ye, Chujun Zhao, Runwu Peng, Shuangchun Wen, Dianyuan Fan. Negative refraction in a honeycomb-lattice photonic crystal[J]. Collection Of theses on high power laser and plasma physics, 2007, 5(1): 165.

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