A periodically-poled LiNbO 3 (PPLN) crystal features space-dependent second-order
nonlinear coefficients, which is one of the most important materials to effectively control …

Nonlinear Cherenkov radiation, an intriguing noncollinear optical parametric process with
versatile longitudinal phase matching, is commonly realized in engineered nonlinear …

Periodic arrays of silver nanoparticles on a Nd 3+‐doped periodically poled ferroelectric
laser crystal are selectively self‐assembled by photochemical methods. By exploiting the …

We report on the observation of Čerenkov emission of a third-harmonic frequency in a two-
dimensional nonlinear photonic crystal, where the second-order nonlinearity χ (2) is spatially …

Ferroelectric patterning is often used in advanced photonics and optoelectronic devices to
increase their operational bandwidth and functionality, providing novel and unique …

We study the second harmonic generation in quadratic nonlinear media with localized
spatial modulation of χ (2) response. We demonstrate that the emission of Cerenkov second …

We report on highly controllable ferroelectric domain inversion in Yb 3+ doped LiNbO 3
laser crystal. The ferroelectric domain patterns are fabricated by direct electron beam writing …

We study experimentally and theoretically the Čerenkov-type second-harmonic generation
in a one-dimensional nonlinear photonic crystal. We demonstrate that the power of emitted …

Broadly tunable multiple high-harmonic conical beams have been generated by means of a
multistep χ^(2) cascade processes in a two dimensional nonlinear photonic crystal. The …

The appearance of the static domains with depth above 200 μm in the bulk of MgO-doped
lithium niobate single crystals as a result of focused electron beam irradiation of Z+-polar …