Publication Type : Conference Proceedings
Publisher : AIP Conference Proceedings
Source : https://ui.adsabs.harvard.edu/abs/2013AIPC.1536..751A/abstract
Campus : Bengaluru
School : School of Engineering
Center : Amrita Innovation & Research
Department : Chemistry
Verified : Yes
Year : 2013
Abstract : We report here the optical and non-linear optical properties of six different novel bis-chalcones of D-π-A-π-D derivatives of diarylideneacetone (DBA). These derivatives have been synthesized by Claisen-Schmidt condensation reaction and were well characterized by using FTIR, 1HNMR, 13CNMR, UV-Visible absorption and mass spectroscopic techniques. The optical bandgap for each of the DBA derivatives were determined both experimentally (UV-Visible spectra & Tauc Plot) and theoretically by ab intio DFT calculations using SIESTA software package. They were found to be in close agreement with each other. The Second Harmonic Generation from these organic chromophores were studied by standard Kurtz and Perry Powder SHG method at 1064 nm. They were found to have superior SHG conversion efficiency when compared to urea (standard sample). Further, we investigated the Multi-Photon absorption properties were using conventional open aperture z-scan technique. These DBA derivatives exhibited strong two photon absorption in the order of 1e-11m/W. Hence, these are potential candidate for various photonic applications like optical power limiting, photonic switching and frequency conversion.
Cite this Research Publication :
Proceedings of the International Conference on Trends in Applied Physics and Material Science: RAM 2013. AIP Conference Proceedings, Volume 1536. AIP Conference Proceedings, Volume 1536, Issue 1, p.751-752