ISSN:
1572-817X
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Elektrotechnik, Elektronik, Nachrichtentechnik
,
Physik
Notizen:
Abstract We have determined the two independent “fast” non-linear refractive indices for liquid mixtures of CS2 and CCI4 to within 5% relatively and 8% absolutely over their range of more than a decade. These indices describe non-linear propagation of optical pulses of arbitrary polarisation, which are of a too short duration to be affected by electrostriction. We report measurements, having relative accuracy better than 1 %, of the static Kerr constants of these mixtures. We combine these results with recent data on Rayleigh wing depolarisation ratios for the same mixtures to deduce the desired non-linear indices with the aid of molecular theory. The non-linear refractive index for linearly polarised light is shown to be two-thirds (±5%) of the index difference measured by the Kerr effect, at least for molar concentrations of CS2 greater than 10%. Our 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.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01834686
