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Multiple surface‐plasmon‐polariton waves localized to a metallic defect layer in a sculptured nematic thin film
Author(s) -
Faryad Muhammad,
Lakhtakia Akhlesh
Publication year - 2010
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201004049
Subject(s) - surface plasmon polariton , materials science , polariton , attenuation , layer (electronics) , liquid crystal , surface plasmon , dielectric , surface wave , metal , optics , wave propagation , plasmon , anisotropy , thin film , condensed matter physics , optoelectronics , composite material , nanotechnology , physics , metallurgy
Abstract The propagation of a surface‐plasmon‐polariton (SPP) wave guided by a thin metallic defect layer in a sculptured nematic thin film (SNTF) – a periodically nonhomogeneous, anisotropic, dielectric material – was studied theoretically. If the defect layer is sufficiently thick, SPP waves propagate independently along the two metal/SNTF interfaces formed by the presence of the defect layer in the SNTF. As the thickness of the defect layer is reduced, SPP wave propagation is modified by the coupling of the two interfaces. The number of SPP waves increases and lower attenuation rates along the direction of propagation become possible.(© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)