Abstract

Recent developments in the field of nonlinear optics (NLO) has pushing second and third-order nonlinear optical materials into practical applications and devices, such as photodynamic therapy, optical-limiting, optical data storage, 3D microfabrication and two-photon excited fluorescence microscopy. Chalcones also known as chalconoids are composed by an aromatic ketone and an enone. They are natural phenols and form the central core of wide spectral of biological compounds. Chalcones derivatives have long been used in nonlinear optics due to the fact they permit the modification of the substituents connected to the aromatic ring and the consequent change in the optical properties of the material. In this work, we present the first NLO results of three types of Chalcones (C15H12O, C16H14O3, C16H14O2) that were characterized with two NLO techniques: Hyper-Rayleigh Scattering (HRS) and Z-Scan, which allowed us to determine the first hyper-polarizabilities and the spectral two-photon (2PA) absortion cross-sections, respectively. Figure 1 show the structure of the molecules studied.

© 2015 IEEE