Lateral shift in photon tunneling studied by the energy streamline method

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The energy streamline method based on the Poynting vector of the coupled forward and backward waves is used to study photon tunneling phenomenon associated with the lateral shift of energy path. Each point on the energy streamline indicates the direction of the net energy flow of a plane wave. In the tunneling configuration, the light energy of the propagating waves is squeezed to the inside of a cone, whereas the streamlines of the coupled evanescent waves go through the barrier inside or outside the cone. This observation provides insight of the photon tunneling phenomenon. A relationship between the energy refraction angle and the incidence angle exists in the proximity limit and can be used to evaluate the lateral shift of the energy path. Furthermore, the energy streamline method can help gain deeper understanding of nanoscale radiation where photon tunneling plays an important role in the heat transfer enhancement.
Publisher
OPTICAL SOC AMER
Issue Date
2006-10
Language
English
Article Type
Article
Keywords

LEFT-HANDED METAMATERIALS; NEGATIVE REFRACTION; HEAT-TRANSFER; LENS; SUPERLENS; CRYSTALS; INDEX

Citation

OPTICS EXPRESS, v.14, no.21, pp.9963 - 9970

ISSN
1094-4087
DOI
10.1364/OE.14.009963
URI
http://hdl.handle.net/10203/91089
Appears in Collection
ME-Journal Papers(저널논문)
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