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Optical properties of polaritons in thin crystal films
Author(s) -
Myasnikov V. N.,
Marisova S. V.,
Lipovchenko A. N.
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.2221170111
Subject(s) - polariton , dispersion relation , refractive index , crystal (programming language) , condensed matter physics , slab , dispersion (optics) , dielectric , materials science , anthracene , luminescence , thin film , dielectric function , optics , physics , optoelectronics , quantum mechanics , nanotechnology , computer science , programming language , geophysics
The dispersion relation for polaritons in a crystal slab of an arbitrary thickness is derived by the quantum Green function method. The equation is reduced to the classical electrodynamics form with an effective dielectric function depending on the crystal thickness. The energy and the radiation damping of polariton modes in thin anthracene crystals are calculated and compared with the experimental values based on the studies of low‐temperature luminescence and refractive index dispersion.