Polaritons at Surfaces

G. D. Mahan and Gustav Obermair
Phys. Rev. 183, 834 – Published 15 July 1969
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Abstract

We calculate the reflectivity of light incident upon the exposed face of a semi-infinite crystal, using the point-dipole model. This requires an accurate solution for the polariton modes near the crystal surface. The variation of the Lorentz local field, caused by the surface, is included in the calculations. The boundary conditions for the polariton modes are derived rigorously. This represents the first rigorous microscopic solution of polariton modes near ideal surfaces.

  • Received 19 March 1969

DOI:https://doi.org/10.1103/PhysRev.183.834

©1969 American Physical Society

Authors & Affiliations

G. D. Mahan*,†

  • Department of Physics and Institute of Theoretical Science, University of Oregon, Eugene, Oregon 97403
  • General Electric Research and Development Center, Schenectady, New York 12301

Gustav Obermair†,‡

  • Departments of Physics, University of Pittsburgh, Pittsburgh, Pennsylvania 15213
  • University of Oregon, Eugene, Oregon 97403

  • *Alfred P. Sloan Research Fellow.
  • †Research Supported by National Science Foundation Grant No. 669-GP-7647.
  • ‡Research supported by Air Force Grant No. B-206-506-8488.

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Vol. 183, Iss. 3 — July 1969

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