Nonlinear optical materials are essential for advanced photonics and laser technologies, but researchers are still searching ...

The nonlinear susceptibility is a measure of a material's nonlinear response to an applied electric field. It determines the strength of the nonlinear effects and is related to the crystal's symmetry ...

Symmetry breaking along and perpendicular to the propagation direction unlocks optical properties forbidden in fully symmetric systems and enables nontrivial mode coupling with enhanced nonlinear ...

Quasi-phase matching (QPM) enhances nonlinear optical processes by compensating for phase mismatch, but traditional methods require permanent material modifications, limiting applicability in ...

EPFL researchers have published a programmable framework that overcomes a key computational bottleneck of optics-based artificial intelligence systems. In a series of image classification experiments, ...