Amplification of evanescent waves in a lossy left-handed material slab

Preprint

16 June 2003

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0304133

Abstract

We carry out finite-difference time-domain (FDTD) simulations, with a specially-designed boundary condition, on pure evanescent waves interacting with a lossy left-handed material (LHM) slab. Our results provide the first full-wave numerical evidence for the amplification of evanescent waves inside a LHM slab of finite absorption. The amplification is due to the interactions between the evanescent waves and the coupled surface polaritons at the two surfaces of the LHM slab and the physical process can be described by a simple model.

Keywords

AMPLIFICATION OF EVANESCENT
LOSSY LEFT HANDED
EVANESCENT WAVES
HANDED MATERIAL
MATERIAL SLAB
TIME DOMAIN
SLAB
LHM

All Related Versions

Version 1, 2003-04-06, ArXiv
Version 2, 2003-06-16, ArXiv
Published version: Physical Review B, 68 (11), 113103.

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