First order hyperpolarizability of benzothiazole salts

Authors: Eva Noskovičová 1    Dušan Lorenc 1,2    Alexandra Čibová 1    Dušan Velič 1,2   
1 Comenius University in Bratislava, Faculty of Natural Sciences, Ilkovičova 6, Bratislava    2 Internacional Laser Centre, Ilkovičová 3, Bratislava   
Year: 2017
Section: Open section
Abstract No.: 1589
ISBN: 978-80-972360-1-4

A first order hyperpolarizability β of benzothiazolium-substituted conjugated donor-π-acceptor dipoles was determined within this work by the hyper-Rayleigh scattering (HRS) metod i.e. by the second order harmonic light scattering in solutions. The 800 nm, 1300 and 1340 output wavelength of a Ti:Sapphire laser system and an optical parametric amplifier was used as the pump source. The second-order nonlinear optical response was detected at 400 nm, 650 and 670 nm respectively. First hyperpolarizabilities were subsequently determined by using the internal and external reference method and their values were determined from 133 to 563 esu.

This research is sponsored by NATO's Public Diplomacy Division in the framework of "Science for Peace," project Nr. SfP984698.
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