Lateral shifts of transmission light from a slab structure with a negative-zero-positive index metamaterial

Abstract

Abstract:

For light waves propagating in a slab structure with a negative-zero-positive index metamaterial in the core, the properties of the lateral shifts of the transmission light are investigated in detail by employing Artman’s stationary phase method. The results prove that, near the DP, the lateral shift can vary from positive to zero then to negative and is dozens of times even hundreds of times higher than the wavelength, which is are strongly dependent on the incident angle, frequency, and the thickness of the metamaterial. For the slow wave mode, the lateral shifts and the photon tunneling are further studied. Because of the Hartman effect, the lateral shift tends to a saturation value when the barrier thickness increases, and displays different properties when the incident angle chosen near and far away from the critical angle. These results may lead to potential applications in integral optics and optical-based devices and also suggest analogous phenomena of valance electron in single-layered carbon graphene.

Key words: optoelectronics, lateral shift, negative-zero-positive index metamaterial, graphene

WANG Xing-lin，Zheng Fanong. Lateral shifts of transmission light from a slab structure with a negative-zero-positive index metamaterial[J]. J4, 2015, 32(3): 257-262.

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