Laser pulse spitting effect in second harmonic generation from 1D photonic crystals in the Laue geometry

We experimentally revealed optical second harmonic generation in 1D photonic crystal under the Bragg diffraction in the Laue geometry under the effect of diffraction induced laser pulse splitting. We demonstrated that nonlinear signal can be maximized by tuning the duration of a femtosecond laser pump pulse. Experimental results are confirmed by numerical simulation that involves the nonlinear full vectorial FDTD code executed by using the supercomputer resources.