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Effects of a transition layer on slab polaritons
Author(s) -
Wendler L.
Publication year - 1983
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221170125
Subject(s) - polariton , physics , dielectric function , slab , dispersion (optics) , dispersion relation , dielectric dispersion , condensed matter physics , dielectric , optics , quantum mechanics , permittivity , geophysics
Abstract Dispersion relations are derived for polaritons in a dielectric slab, coated with a transition layer (thickness 20 to 150 Å), on a substrate. If \documentclass{article}\pagestyle{empty}\begin{document}$ \[{\tilde \varepsilon }\] $\end{document} 1(ω) is the dielectric function of the transition layer a splitting of the dispersion curves occurs for resonances of the form \documentclass{article}\pagestyle{empty}\begin{document}$ \[{\tilde \varepsilon }\] $\end{document} (ω ⟂) = ∞ and \documentclass{article}\pagestyle{empty}\begin{document}$ \[{\tilde \varepsilon }\] $\end{document} (ω∥) = 0 in the case of p‐polarized polaritons. In the case of s‐polarized polaritons the splitting is obtained only for resonances of the form \documentclass{article}\pagestyle{empty}\begin{document}$ \[{\tilde \varepsilon }\] $\end{document} (ω ⟂) = ∞.