Non-Gaussian laser beams can open new opportunities for microfabrication, including
ultrashort laser direct writing. Using a model based on Maxwell's equations, we have …

The generation of femtosecond optical vortex beam based on direct wave-front modulation
with phase-only liquid crystal spatial light modulator is demonstrated. The spatial and …

Filamentation of powerful femtosecond beams with a vortex of the topological charge l= 2 in
sapphire is studied. A method to control the azimuthal position of filaments by changing the …

The interaction of polarization singularities (C-points) of a light field in collinearly
propagating beams in an isotropic gyrotropic medium with nonlocal nonlinear cubic optical …

Nonlinear dynamics of high-intensity femtosecond singular pulses in a Kerr medium with
group velocity dispersion (GVD) is analysed using variational and numerical approaches …

We numerically study the dynamics of the formation of optical vortex from collimated
Gaussian beam behind a spiral phase plate, and assess the characteristic scale of …

Self-action of a femtosecond optical vortex in fused silica at a wavelength of 1900 nm is
analyzed by means of numerical simulations. The formation of a multi-focus ring structure is …

Possible scenarios of high-intense vortex (and Gaussian) pulsed beam propagation in Kerr
media and light bullet (LB) formation conditions are considered. The system of modified …

Evolution of Polarization Singularities of Two Monochromatic Beams in Their Collinear
Interaction in an Isotropic Medium with Spatial Dispersion of Cubic Nonlinearity | SpringerLink …

Численно исследована динамика частотно-угловых спектров фемтосекундного
излучения на длине волны 800 нм в кольцевом пучке с фазовой сингулярностью при его …