Stimulated Extraordinary Polaritons in α‐Quartz | Zendy

Chapet M. | Zendy; Laval S. | Zendy

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Stimulated Extraordinary Polaritons in α‐Quartz

Author(s) -

Chapet M.,

Laval S.

Publication year - 1975

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.2220710120

Subject(s) - polariton , dispersion (optics) , quartz , optics , range (aeronautics) , materials science , beam (structure) , physics , composite material

From an experimental study, dispersion curves are plotted of three extraordinary and one ordinary polariton modes in α‐quartz in the range 350 to 500 cm −1 . A theoretical formulation of the two‐beam method, experimentally used, makes the possible coupling between E and A 2 vibration modes obvious and the simultaneous existence of ordinary and extraordinary polaritons. The experimentally obtained dispersion curves are compared to the corresponding calculated branches. The agreement is quite good.

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