Tailoring Čerenkov second-harmonic generation in bulk nonlinear photonic crystal

TL;DR: The basic concepts and phenomenology of wave mixing and harmonic generation are reviewed in context of the recent advances in the enhanced nonlinear activity in metamaterials and photonic crystals.

TL;DR: In this paper, the Cerenkov-type second-harmonic generation in a one-dimensional nonlinear photonic crystal was studied experimentally and theoretically, and it was shown that the power of emitted secondharmonic can be enhanced by varying the angle of incidence of the fundamental beam such that the reciprocal lattice vector of the crystal can be used to compensate for the phase mismatch in the transverse direction.

TL;DR: An analytical solution is proposed to calculate the second harmonic intensity in rectangular 2D lattices that can be useful for the generation of multiple second harmonic beams with the efficiency a few orders of magnitude higher than in the case of nonphase-matched generation via NRND.

TL;DR: In this article, a phase matching of the incident light and the scattering light was used to obtain a single pass conversion efficiency of up to 14.8% by only once reflection, which may suggest potential applications in micro-structures such as micro cavities and waveguides.

TL;DR: It is shown that focusing a laser light onto the boundary between antiparallel ferroelectric domains leads to the non-collinear generation of two second harmonic (SH) beams, which are emitted in a plane normal to the domain boundaries at the angles that satisfy the Cerenkov-type phase matching condition.

TL;DR: Nonlinear Cerenkov radiation generated from a nonlinear photonic crystal waveguide where the nonlinear susceptibility tensor is modulated by the ferroelectric domain is studied.

TL;DR: In this article, the Cerenkov-type second-harmonic generation in several different two-dimensional nonlinear photonic structures formed in birefringent crystals with the 3 m symmetry was studied.

TL;DR: The domain wall regions in periodically poled KTiOPO4 crystals were examined and found to give rise to phasematched second harmonic generation in the Cerenkov directions as discussed by the authors.