Theory and experiments on multistep parametric processes in nonlinear optics
Résumé
We present a comprehensive model for the description of different types of parametric interactions, associated with simultaneous phase-matching of several optical processes: the so-called multistep parametric interactions. Our approach is based on a recently derived single wave broadband equation that is able to describe general quadratic nonlinear optical interactions and can be solved with modest computational effort. We compare theoretical results with experiments on simultaneous second and third harmonic generation performed in periodically poled lithium tantalate crystals.
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