OSA's Digital Library

Applied Optics

Applied Optics


  • Vol. 22, Iss. 23 — Dec. 1, 1983
  • pp: 3810–3812

Quasi-elastic light scattering of carnauba wax in the liquid phase: dynamics 2

Fábio João de Almeida and Geraldo A. Barbosa  »View Author Affiliations

Applied Optics, Vol. 22, Issue 23, pp. 3810-3812 (1983)

View Full Text Article

Enhanced HTML    Acrobat PDF (313 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



Quasi-elastic light scattering of carnauba wax in the liquid phase is obtained in a heterodyne setup, and dynamic processes are analyzed through electrophoresis. Nonspherical polar clusters are found, containing a net electrical charge. An applied square-wave electric field induces drift and rotation of these clusters. These effects are dependent on strength and frequency of the applied electric field. At 373 K and in the low frequency limit the local electric field strength is approximately 70 times the strength of the applied one. This enhancement is believed to be caused by collective orientation of the clusters. The electrophoretic mobility is 1.1 × 10−12 m2/V sec in the high frequency limit and 7.4 × 10−11 m2/V sec in the low frequency limit. The electric dipole moment is 6.3 × 10−16N−1/2 m−1/2 where N is the cluster density/cubic meter and the net charge is about one or two elementary charges.

© 1983 Optical Society of America

Original Manuscript: July 14, 1983
Published: December 1, 1983

Fábio João de Almeida and Geraldo A. Barbosa, "Quasi-elastic light scattering of carnauba wax in the liquid phase: dynamics 2," Appl. Opt. 22, 3810-3812 (1983)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. G. A. Barbosa, R. Russi, A. S. T. Pires, O. N. Mesquita, Appl. Phys. Lett. 38, 239 (1981). [CrossRef]
  2. L. Fonseca, G. A. Barbosa, Appl. Opt. 22, 1409 (1983). [CrossRef] [PubMed]
  3. B. Gross, An. Acad. Bras. Ciênc 17, 219 (1945).
  4. B. Gross, J. Chem. Phys. 17, 866 (1949). [CrossRef]
  5. H. Z. Cummins, F. D. Carlson, T. J. Herbert, G. Woods, Biophys. J. 9, 518 (1969). [CrossRef] [PubMed]
  6. D. W. Shaefer, G. B. Benedeck, P. Schofield, E. Bradford, J. Chem. Phys. 55, 3884 (1971). [CrossRef]
  7. G. Uhlenbeck, L. S. Orstein, Phys. Rev. 36, 823 (1930). [CrossRef]
  8. A. Einstein, Investigation on the Theory of Brownian Movement (Dover, New York, 1967).
  9. H. Z. Cummins, E. R. Pike, Photon Correlation and Light Beating Spectroscopy (Plenum, New York, 1973), p. 216.
  10. P. Debye, Polar Molecules (Dover, New York, 1929).
  11. J. H. Van Vleck, The Theory of Electric and Magnetic Susceptibilities (Lowe & Brydone, London, 1966).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1 Fig. 2 Fig. 3
Fig. 4

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited