Abstract

Coherent and incoherent nonlinear optical effects play important role in photonics, laser physics and quantum optics. However, nonlinear optical applications are limited by the available choice of naturally occurring materials and their generally weak nonlinear response. Weak nonlinearity of conventional materials can be enhanced by their nanostructuring or through metamaterial approach [1,2]. Dielectric and plasmonic nanoparticles, nanostructures, metamaterials and metasurfaces provide unique opportunities to design the enhanced nonlinear optical response in the required spectral range and with required parameters [2,3]. Using complex vector beams with tailored distributions of the electric field amplitude and phase provides additional opportunities to manipulate nonlinear response.

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