Optical hollow-core waves in nonlinear Epsilon-Near-Zero metamaterials

Details Optical hollow-core waves in nonlinear Epsilon-Near-Zero metamaterials Optical hollow-core waves in nonlinear Epsilon-Near-Zero metamaterials

2010-04-27

arxiv.org/abs/1004.4820v2

Physics

Optics

Scientific paper

We investigate non-diffracting hollow-core nonlinear optical waves propagating in a layered nanoscaled metal-dielectric structure characterized by a very small average linear dielectric permittivity (Nonlinear Epsilon-Near-Zero metamaterial). We analytically show that hollow-core waves have a power flow exactly vanishing at a central region and exhibiting a sharp sloped profile at the edges of the regions surrounding the core. Physically, the absence of power flow at the core region is due to the vanishing of the transverse component of the electric displacement field, condition that can be satisfied by the full compensation between the nonlinear and linear dielectric contribution.

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