NONLINEAR REFRACTIVE INDICES OF CS2-CCl4 MIXTURES
Abstract
The two independent 'fast' nonlinear refractive indices for liquid mixtures of CS2 and CCl4 have been determined to within 5% relatively and 8% absolutely over their range of more than a decade. These indices describe nonlinear propagation of optical pulses of arbitrary polarization, which are of too short duration to be affected by electrostriction. Reported are measurements of the static Kerr constants of these mixtures having relative accuracy better than one percent. These results are combined with recent data on Rayleigh wing depolarization ratios for the same mixtures to deduce the desired nonlinear indices with the aid of molecular theory. The nonlinear refractive index for linearly polarized light is shown to be two-thirds (plus or minus 5%) of the index difference measured by the Kerr effect, at least for molar concentrations of CS2 greater than 10%. The measured relative values of the mixture Kerr constants are predicted to within experimental error if one simply replaces the Lorentz local field factors in the classical theory by their 0.6 powers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1969
- Accession Number
- AD0704156
Entities
People
- Nicholas George
- Robert Hellwarth
Organizations
- California Institute of Technology