Nonlinear beam shaping refers to spatial reconfiguration of a light beam at a new frequency,
which can be achieved by using nonlinear photonic crystals (NPCs). Direct nonlinear beam …

Nonlinear photonic crystals (NPCs) are transparent materials with a space‐dependent (often
periodic) second‐order nonlinearity, which have been used extensively for the generation …

Since the lasers at fixed wavelengths are unable to meet the requirements of the
development of modern science and technology, nonlinear optics is significant for …

Spontaneous Raman spectroscopy (SR) is a versatile method for analysis and visualization
of ferroelectric crystal structures, including domain walls. Nevertheless, the necessary …

Ferroelectric domain engineering has wide applications in optical and electronic industries.
Compared with traditional electric field poling, femtosecond laser poling has many …

Recent analyses by polarization resolved second-harmonic (SH) microscopy have
demonstrated that ferroelectric (FE) domain walls (DWs) can possess non-Ising wall …

The design of nonlinear photonic Vogel's spiral based on quasi-crystal theory was
demonstrated. Two main parameters of Vogel's spiral were arranged to obtain multi …

The fabrication of stable, tailored domain patterns in ferroelectric crystals has wide
applications in optical and electronic industries. All-optical ferroelectric poling by pulse laser …

Nonlinear photonic crystals (NPCs) have been widely used for studying nonlinear wave
behaviors and in many applications requiring generation of light at new frequencies. In …

The effect of a defective mode layer of GaAs semiconductor material of one-dimensional
nonlinear photonic crystal, which is a function of intensity as well as the wavelength, is …