Electronic and nuclear contributions to the third-order nonlinear optical susceptibilities of new p-N, N’-dimethylaniline tetrathiafulvalene derivatives
Optics Letters, Vol. 23, Issue 23, pp. 1811-1813 (1998)
http://dx.doi.org/10.1364/OL.23.001811
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Abstract
We report large third-order nonlinear optical susceptibilities 〈3〉ijkl of new tetrathiafulvalene derivatives, using the degenerate four-wave mixing (DFWM) method. To understand the physical nature of the optical nonlinearities, we separate their electronic and nuclear contributions. The electronic contribution to the third-order nonlinear optical susceptibilities of the molecules turns out to be dominant. From DFWM measurements we also deduce the values of the second-order hyperpolarizabilities γ, which are ~105 greater than the γ value of CS2
© 1998 Optical Society of America
[America ]
OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
Citation
B. Sahraoui, X. Nguyen Phu, M. Sallé, and A. Gorgues, "Electronic and nuclear contributions to the third-order nonlinear optical susceptibilities of new p-N, N’-dimethylaniline tetrathiafulvalene derivatives," Opt. Lett. 23, 1811-1813 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-23-1811
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