Second-Harmonic Light Generation in Crystals with Natural Optical Activity
- 15 July 1968
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 171 (3), 1104-1114
- https://doi.org/10.1103/physrev.171.1104
Abstract
Whenever a circularly polarized laser beam propagates along an axis of threefold symmetry in a piezo-electric crystal, the second-harmonic polarization is circularly polarized in the opposite sense. Rabin and Bey have discussed the theory of second-harmonic generation in crystals with natural optical activity. We have observed this circular polarization and also the difference in coherence lengths for opposite senses of circular polarization, with both fundamental and second-harmonic beams propagating along the [111] direction in single crystals of NaCl and NaBr, belonging to the cubic class 23, for which the proper eigenmodes are circularly polarized waves. The nonlinear susceptibility of both NaCl and NaBr has been measured and compared with the nonlinear susceptibility of -quartz. The relative sign of the susceptibilities has been determined in second-harmonic interference experiments with the same laser beam traversing two crystals in succession. The interesting questions of the sign of the nonlinear susceptibility, piezoelectric constant, optical activity, and the absolute atomic configuration of the antipodes are discussed. The question of conservation of angular momentum is resolved by taking into account the crystal-line-field potential of threefold symmetry, which gives rise to a torque on the crystal lattice.
Keywords
This publication has 10 references indexed in Scilit:
- Nonlinear Optical CoefficientsBell System Technical Journal, 1967
- Phase Matching in Harmonic Generation Employing Optical Rotatory DispersionPhysical Review B, 1967
- Relative Phase Measurement Between Fundamental and Second-Harmonic LightPhysical Review Letters, 1965
- Nonlinear Optical Properties of LiquidsPhysical Review B, 1965
- Improved Geometry for Quantitative Measurements of Optical Frequency DoublingJournal of Applied Physics, 1965
- Stark Effects on the Nuclear Quadrupole Coupling of35Cl in Sodium ChlorateThe Journal of Chemical Physics, 1964
- Interactions between Light Waves in a Nonlinear DielectricPhysical Review B, 1962
- Nonlinear Dielectric Polarization in Optical MediaPhysical Review B, 1962
- Determination of the Absolute Configuration of α-QuartzNature, 1958
- Elastic, Piezoelectric, and Dielectric Properties of Sodium Chlorate and Sodium BromatePhysical Review B, 1946