Date & Time: Jan 17 2025 | 11:30am - 12:30pm Location: Life Sciences, Room C112 The second harmonic generation (SHG) is a nonlinear coherent second-order scattering process that causes frequency doubling of incident light. It is widely used in laser technology, spectroscopy, microscopy, wireless communication technology and fiber-optic communication systems. The main requirement for the SHG process is the noncentrosymmetry of the material, since the second-order susceptibility coefficient, which is responsible for the second harmonic generation, is zero in all centrosymmetric structures. The strict criteria for SHG materials set the demand for materials with excellent SHG properties. To meet these requirements, various design strategies can be used to obtain materials with large SHG intensity. This seminar discusses the following design strategies: π-conjugated anions combination, synthesis of structures with highly polarizable cations, condensation of polyiodates and aliovalent substitution for 3D inorganic materials; artificial stacking, application of electric field and doping in graphene-like materials, transition metal dichalcogenides and IIIA-VIA compounds 2D layered materials or thin films. Type of Event: Materials Chemistry and Nanoscience Seminar Research Areas: Materials Chemistry and Nanoscience Maksim Tabatadze Department: Graduate Student, Department of Chemistry University of Georgia Learn more about the speaker https://chem.uga.edu/directory/people/maksim-tabatadze
