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Effect of poles on subwavelength focusing by an LHM slab
Author(s) -
Lu Jie,
Grzegorczyk Tomasz M.,
Wu BaeIan,
Pacheco Joe,
Chen Min,
Kong Jin Au
Publication year - 2005
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.20719
Subject(s) - slab , permittivity , electric field , microwave , optics , physics , permeability (electromagnetism) , condensed matter physics , dielectric , optoelectronics , chemistry , quantum mechanics , geophysics , biochemistry , membrane
The poles of the electric field inside a slab with negative permittivity and negative permeability are analyzed. The theoretical solution shows that there is a pole on the integral path which moves toward infinity along the imaginary k z axis as the permittivity and permeability both approach the real value of −1. The surface plasmon wave and the resolution ability of the slab are shown to be determined by this pole. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 45: 49–53, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20719