23 September 2016 Acoustic effects on nonlinear optical processes
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Abstract
We studied the effects of two types of ultrasonic waves, shear waves and longitudinal waves, using two nonlinear optical techniques, second-harmonic generation and hyper-Rayleigh scattering. Since shear waves hardly propagate in liquids, their influence on molecules at the interface between a surface and a liquid was studied using second-harmonic generation. Longitudinal waves propagate easily in solution, thus we used hyper-Rayleigh scattering to probe the ultrasonic effects on chromophores in solution. While we did not find shear waves to alter the second-harmonic generation from chromophores at the liquid/surface interface, the longitudinal waves caused effects comparable to our earlier observations. Longitudinal ultrasound caused a strong intensity modulation of the nonlinear optical signal according to a wave-pattern.
Conference Presentation
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Steven Deckers, Steven Deckers, Nick Van Steerteghem, Nick Van Steerteghem, Christ Glorieux, Christ Glorieux, Thierry Verbiest, Thierry Verbiest, Monique A. van der Veen, Monique A. van der Veen, } "Acoustic effects on nonlinear optical processes", Proc. SPIE 9939, Light Manipulating Organic Materials and Devices III, 99390F (23 September 2016); doi: 10.1117/12.2236958; https://doi.org/10.1117/12.2236958
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