Boundary Conditions in Case of Spatial Resonance Dispersion

Torben Skettrup, I. Balslev

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Abstract

A simple model accounting for the influence of a surface on polariton waves is introduced. From this the extra boundary condition needed in case of a dispersive resonance is derived. The general result is discussed in relation to actual resonances in crystals. The theory of bulk waves and their boundary conditions is extended to include two or more dispersive resonances. The behavior of the measured exciton lines in ZnO agrees well with the computed spectra.
Original languageEnglish
JournalPhysical Review B Condensed Matter
Volume3
Issue number4
Pages (from-to)1457-1462
ISSN0163-1829
DOIs
Publication statusPublished - 1971

Bibliographical note

Copyright (1971) by the American Physical Society.

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