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On Crossings of Polariton Branches in Uniaxial Crystals
Author(s) -
Lamprecht O.,
Merten L.
Publication year - 1969
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.19690350136
Subject(s) - polariton , perpendicular , condensed matter physics , uniaxial crystal , physics , space (punctuation) , free space , optics , optical axis , geometry , mathematics , computer science , lens (geology) , operating system
It is shown that there are no common crossing points for the ordinary polariton branches within the whole k ‐space. For the extraordinary polariton branches crossing points are only possible for directions parallel or perpendicular to the optical axis.