Positive and Negative Lateral Shifts from an Anisotropic Metamaterial Slab Backed by a Metal
CHENG Min1,2, CHEN Rong2
1Department of Physics and Electronic Information Engineering, Minjiang University, Fuzhou 3501082Key Laboratory of Optoelectronic Science and Technology for Medicine (Ministry of Education), Fujian Normal University, Fuzhou 350007
Positive and Negative Lateral Shifts from an Anisotropic Metamaterial Slab Backed by a Metal
CHENG Min1,2, CHEN Rong2
1Department of Physics and Electronic Information Engineering, Minjiang University, Fuzhou 3501082Key Laboratory of Optoelectronic Science and Technology for Medicine (Ministry of Education), Fujian Normal University, Fuzhou 350007
The lateral shift of a light beam at the surface of an anisotropic metamaterial (AMM) slab backed by a metal is investigated. Analytical expressions of the lateral shifts are derived using the stationary-phase method, in the case that total reflection does and does not occur at the first interface. The sign of the lateral shift in two situations is discussed, and the necessary conditions for the lateral shift to be positive or negative are given. It is shown that the thickness and physical parameters of the AMM slab and the incident angle of the light beam strongly affect the properties of the lateral shift. Numerical results validate these conclusions. The lossy effect of the metamaterial on the lateral shift is also investigated.
The lateral shift of a light beam at the surface of an anisotropic metamaterial (AMM) slab backed by a metal is investigated. Analytical expressions of the lateral shifts are derived using the stationary-phase method, in the case that total reflection does and does not occur at the first interface. The sign of the lateral shift in two situations is discussed, and the necessary conditions for the lateral shift to be positive or negative are given. It is shown that the thickness and physical parameters of the AMM slab and the incident angle of the light beam strongly affect the properties of the lateral shift. Numerical results validate these conclusions. The lossy effect of the metamaterial on the lateral shift is also investigated.
CHENG Min;CHEN Rong. Positive and Negative Lateral Shifts from an Anisotropic Metamaterial Slab Backed by a Metal[J]. 中国物理快报, 2009, 26(1): 14101-014101.
CHENG Min, CHEN Rong. Positive and Negative Lateral Shifts from an Anisotropic Metamaterial Slab Backed by a Metal. Chin. Phys. Lett., 2009, 26(1): 14101-014101.
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2009, Vol. 26 
