A unique lateral displacement of a Gaussian beam transmitted through a slab with negative permittivity and permeability

✍ Scribed by Jin Au Kong; Bae-Ian Wu; Yan Zhang

• Book ID: 102515188
• Publisher: John Wiley and Sons
• Year: 2002
• Tongue: English
• Weight: 273 KB
• Volume: 33
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.10255

✦ Synopsis

Abstract

This Letter demonstrates a unique negative lateral shift of a Gaussian beam transmitted through a slab with both negative permittivity and permeability, which is distinctly different from a shift caused by a regular dielectric 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. A dramatic negative lateral shift is observed when both ε and μ are negative. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 33: 136–139, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10255