Negative Refraction and Near-Field Imaging of an Elliptical-Rod Photonic Crystal Slab in the Second Band
FENG Shuai1, AO Ling1, WANG Yi-Quan1, LI Zhi-Yuan2, ZHANG Dao-Zhong2
1Academy of Physics and Electronic Engineering, Central University for Nationalities, Beijing 1000812Institute of Physics, Chinese Academy of Sciences, Bejing 100080
Negative Refraction and Near-Field Imaging of an Elliptical-Rod Photonic Crystal Slab in the Second Band
1Academy of Physics and Electronic Engineering, Central University for Nationalities, Beijing 1000812Institute of Physics, Chinese Academy of Sciences, Bejing 100080
摘要Negative refraction and imaging properties of the electromagnetic wave through a two-dimensional photonic crystal (PC) slab, which consists of a square lattice of elliptical dielectric rods immersed in the air background, is studied by the plane-wave expansion method and the finite-difference time-domain method. A point source placed in the vicinity of the PC slab can form a good-quality image spot through the PC slab for the incident frequencies within the second photonic band. The calculated result also shows that negative refraction occurs in this kind of PC slab.
Abstract：Negative refraction and imaging properties of the electromagnetic wave through a two-dimensional photonic crystal (PC) slab, which consists of a square lattice of elliptical dielectric rods immersed in the air background, is studied by the plane-wave expansion method and the finite-difference time-domain method. A point source placed in the vicinity of the PC slab can form a good-quality image spot through the PC slab for the incident frequencies within the second photonic band. The calculated result also shows that negative refraction occurs in this kind of PC slab.
FENG Shuai;AO Ling;WANG Yi-Quan;LI Zhi-Yuan;ZHANG Dao-Zhong. Negative Refraction and Near-Field Imaging of an Elliptical-Rod Photonic Crystal Slab in the Second Band[J]. 中国物理快报, 2007, 24(9): 2675-2677.
FENG Shuai, AO Ling, WANG Yi-Quan, LI Zhi-Yuan, ZHANG Dao-Zhong. Negative Refraction and Near-Field Imaging of an Elliptical-Rod Photonic Crystal Slab in the Second Band. Chin. Phys. Lett., 2007, 24(9): 2675-2677.
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2007, Vol. 24 
