R.J. Gambino, N.R. Stemple, et al.
Journal of Physics and Chemistry of Solids
The Raman heterodyne interference phenomenon observed recently in the impurity-ion crystals Pr3+ and Pr3+ is examined from the viewpoint of symmetry analysis of the nonlinear susceptibility tensor. General Raman heterodyne signals are derived for all crystal symmetries and for all optical-frequency and radiofrequency polarizations. An example of the utility of this approach resolves a controversy over the crystal symmetry of LaF3, establishing that it is trigonal rather than hexagonal. © 1985 The American Physical Society.
R.J. Gambino, N.R. Stemple, et al.
Journal of Physics and Chemistry of Solids
P. Alnot, D.J. Auerbach, et al.
Surface Science
G. Will, N. Masciocchi, et al.
Zeitschrift fur Kristallographie - New Crystal Structures
P. Martensson, R.M. Feenstra
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films