Lateral displacement of a Gaussian beam reflected from a grounded slab with negative permittivity and permeability
- 18 March 2002
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 80 (12), 2084-2086
- https://doi.org/10.1063/1.1462865
Abstract
A unique negative lateral shift is demonstrated in this letter for a Gaussian beam reflected from a grounded slab with both negative permittivity and permeability, which is distinctly different from a shift caused by a regular grounded slab. The incident beam is modeled as a tapered wave with a Gaussian spectrum. The waves inside and outside the slab are solved analytically from Maxwell’s equations by matching the boundary conditions at the interfaces. It is shown that the field values in all regions can be unambiguously determined. Numerical simulations are presented and the field values as well as the power densities are computed for all regions, and a dramatic negative lateral shift is observed when both ε and μ are negative.Keywords
This publication has 6 references indexed in Scilit:
- Electromagnetic Wave Interaction with Stratified Negative Isotropic MediaProgress In Electromagnetics Research, 2002
- Experimental Verification of a Negative Index of RefractionScience, 2001
- Negative Refraction Makes a Perfect LensPhysical Review Letters, 2000
- Negative Refractive Index in Left-Handed MaterialsPhysical Review Letters, 2000
- Composite Medium with Simultaneously Negative Permeability and PermittivityPhysical Review Letters, 2000
- THE ELECTRODYNAMICS OF SUBSTANCES WITH SIMULTANEOUSLY NEGATIVE VALUES OF $\epsilon$ AND μSoviet Physics Uspekhi, 1968