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Polarization Dependence of Three‐Photon Absorption in Solids
Author(s) -
Hassan A. R.,
Raouf R.
Publication year - 1981
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.2221040239
Subject(s) - polarization (electrochemistry) , photon , two photon absorption , physics , electron , photon polarization , attenuation coefficient , absorption (acoustics) , atomic physics , quantum mechanics , condensed matter physics , optics , molecular physics , chemistry , laser
The polarization dependence of three‐photon absorption in solids is developed using the Wigner‐Eckart theorem for finite symmetry groups. The expression for the absorption coefficient is separated into two parts: (i) The geometrical part, which depends on the polarization vectors of the three photons, (ii) the dynamical part, which contains the product of three electron‐photon matrix elements. New information can be gained by studying these two parts. An application to TlCl crystal is given and an experimental method is suggested.