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Separation of Isotropic and Anisotropic Tensor for MAPbI3 Perovskite Crystal Using Group Theory and Simplified Bond Hyperpolarizability Model.
(IPB University, 2019)
Nonlinear phenomena occur when the electric field from a coherent and high-intensity light source interacts with the atoms in the material so that it oscillates anharmonically along the bond. Optical nonlinearities can be ...