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22 December 1989 Quadratic Nonlinear Spectroscopy In LB Monolayers Of Diazostilbenes And Polyenes
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Proceedings Volume 1127, Nonlinear Optical Materials II; (1989)
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France
The second-order nonlinear susceptibility X(2)xxx its two molecules, an azo dye and a polyene, is measured at various fundamental frequencies, so as to study its frequency dependence. The molecules are deposited on an hydrophilic glass substrate by use of the Langmuir-Blodgett technique. A resonant enhancement of X(2) is observed for both molecules, and the X(2) frequency dependence displays two well separated maxima. The origin of these peaks is discussed in terms of resonance with vibronic levels.
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I. Ledoux and F. Kajzar "Quadratic Nonlinear Spectroscopy In LB Monolayers Of Diazostilbenes And Polyenes", Proc. SPIE 1127, Nonlinear Optical Materials II, (22 December 1989);

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