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Nonlinear optics is the branch of optics that studies the phenomena that arise from the interaction of matter with intense light fields, typically from laser beams, provoking a nonlinear response of the medium to the amplitude of the field. As examples of these phenomena one can mention optical frequency conversion, multi-photonic absorption, selfocusing or defocusing of light, the Raman effect, refraction index modulation, wave mixing and others.
In this field of research, nonlinear effects are used to develop tunable coherent radiation systems, semi-coherent white light sources, THz sources, photorefractive materials, optical limiters, analysis protocols based on the Raman effect, the structural analysis of matter and bioimaging, among others.
Last Update: May 19, 2022