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Theory of Plasmon Excitation in Thin Films by Electrons of Non‐Normal Incidence
Author(s) -
Otto A.
Publication year - 1967
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.19670220211
Subject(s) - electron , foil method , plasmon , excitation , surface plasmon , atomic physics , dielectric , free electron model , materials science , dispersion relation , dispersion (optics) , incidence (geometry) , condensed matter physics , physics , optics , optoelectronics , quantum mechanics , composite material
Calculations of characteristic energy losses of electrons in thin dielectric foils are given for a) electrons with inclined incidence to the foil, b) electrons travelling parallel to the foil surface. Retardation is taken into account for case b) in the limit of very thick foils. For the special case in which the dielectric behaves as a free electron gas, excitation probabilities and dispersion relations are deduced for bulk and surface plasmons.