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 ...

Strike a bell, and the bell rings at its resonance modes. Strike it harder and the bell rings at the same tone, only louder. Now imagine a small crack in the bell, perhaps invisible to the eye. We ...

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS In the era of big data, signal processing faces significant challenges in terms of capacity and energy ...