Second harmonic generation (SHG) as a characterization technique and phenomological probe for organic materials
K.D. Singer and Y. Wu, Case Western Reserve University, USA
Optical second harmonic generation (SHG) is a powerful technique to study nonlinear optical properties of materials. SHG is notable for its requirement for the absence of a material inversion center. In an electric field induced SHG (EFISHG) experiment, symmetry is broken by an electric field allowing SHG. Hyper-Rayleigh scattering (HRS) is another technique that probes incoherent SHG in isotropic solution. Both EFISHG and HRS are used to study molecular nonlinear optical mechanisms and characterize new materials.
Key words
electric yield induced second harmonic ...
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