Abstract:
In this work the nonlinear optical (NLO) properties of some polycyclic aromatic hydrocarbons (PAHs) are studied both in solutions and incorporated in thin films. The pres...Show MoreMetadata
Abstract:
In this work the nonlinear optical (NLO) properties of some polycyclic aromatic hydrocarbons (PAHs) are studied both in solutions and incorporated in thin films. The present study aims to investigate the effect of the structure of the PAH (i.e. geometry, number of rings, planarity, curvature, etc.) on their nonlinear optical (NLO) response. In that view, two O-doped (O-annulated), almost planar, PAHs (i.e., the 6Pp and the 6Fur) and a twisted bay-substituted quaterrylene are studied. The synthesis of these PAHs allowed the efficient tuning of their bandgap energy and their photophysical parameters, which on their turn allows for the efficient modulation of their third-order NLO response. So, both the nonlinear absorption and refraction of the PAHs of interest were determined and the corresponding third-order susceptibility χ(3) was deduced by means of the Z-scan technique, employing 35 ps laser pulses. The chemical stability together with the easy and efficient tunability of the photophysical properties of these hydrocarbons make them very interesting candidates for photonic and optoelectronic applications.
Date of Conference: 09-13 July 2019
Date Added to IEEE Xplore: 19 September 2019
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