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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 18, Iss. 5 — May. 1, 2001
  • pp: 610–616

Third-order optical nonlinearities in new octupolar molecules and their dipolar subunits

B. Derkowska, J. C. Mulatier, I. Fuks, B. Sahraoui, X. Nguyen Phu, and C. Andraud  »View Author Affiliations


JOSA B, Vol. 18, Issue 5, pp. 610-616 (2001)
http://dx.doi.org/10.1364/JOSAB.18.000610


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Abstract

The third nonlinear optical susceptibility (χ〈3〉) of a new family of octupolar molecules with one, two, and three double bonds has been measured at 532 in tetrahydrofuran solutions by the degenerate four-wave mixing (DFWM) method. For comparison, we also measured the analogous dipolar subunits of the molecules. The second hyperpolarizability (γ) for these molecules was deduced. We found that octupolar molecules exhibit large second-order hyperpolarizability (γ) values. The γ values obtained for octupolar compounds are approximately 10 times larger than those of their corresponding dipolar subunits and 104 times larger than those of CS2, which is a reference material for DFWM.

© 2001 Optical Society of America

OCIS Codes
(190.4400) Nonlinear optics : Nonlinear optics, materials
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(190.5040) Nonlinear optics : Phase conjugation

Citation
B. Derkowska, J. C. Mulatier, I. Fuks, B. Sahraoui, X. Nguyen Phu, and C. Andraud, "Third-order optical nonlinearities in new octupolar molecules and their dipolar subunits," J. Opt. Soc. Am. B 18, 610-616 (2001)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-18-5-610

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