Recently, integrated photonics has attracted considerable interest owing to its wide
application in optical communication and quantum technologies. Among the numerous …

Abstract Domain engineered ferroelectric crystals are a type of microstructure functional
material that is used widely in the area of nonlinear optics. Herein, research processes in the …

What we believe is a new scheme for producing semidiscrete self-trapped vortices (“swirling
photon droplets”) in photonic crystals with competing quadratic (χ^(2)) and self-defocusing …

Nonlinear interactions between light waves can exchange energy, linear momentum, and
angular momentum. The direction of energy flow between frequency components is usually …

We demonstrate phase-matched second-harmonic generation (SHG) from three-
dimensional metamaterials consisting of stacked metasurfaces. To achieve phase matching …

We demonstrate an all-optical fabrication method of quasi-phase matching structures in
lithium niobate (LiNbO_3) waveguides using a tightly focused femtosecond near-infrared …

In this tutorial we discuss the macroscopic aspects of the extreme nonlinear frequency
conversion process of high-order harmonic generation. For most, this entails describing the …

Over the past few decades, there has been extensive research work carried out in the area
of nonlinear optics and opened a myriad of applications in material science and …

Nonlinear frequency conversion is promising for manipulating photons with orbital angular
momentum (OAM). In this letter, we investigate the second harmonic generation (SHG) of …

White laser with balanced performance of broad bandwidth, high average and peak power,
large pulse energy, high spatial and temporal coherence, controllable spectrum profile, and …