We numerically study the propagation of a few-cycle pulse carrying orbital angular
momentum (OAM) through a dense atomic system. Nonlinear precursors consisting of high …

Experimentally observed near-field and far-field spatial profiles, frequency spectra, and cone
angles are in good agreement with numerical computations of a theory that includes …

The mechanism of supercontinuum generation and the spatial distribution of its sources
during the propagation of a high-power femtosecond laser pulse in liquids and gases are …

The conical second harmonic emission from a bulk KDP crystal was detected and
interpreted in terms of Cherenkov-type phase matching. In contrast to the models describing …

We have developed and tested a parallelizable, bidirectional (PB) numerical algorithm for
the simulation of propagating laser pulse trains and oppositely propagating laser beams or …

We introduce a unique technique for generating directional coherent emissions that could
be utilized to create coherent sources in a wide range of frequencies from the extreme …

The broadband parametric upconverted conical emission (CE) has been investigated in a β-
barium borate crystal with phase matching angles away from second harmonic generation …

Experimental and numerical investigation of single-beam and pump-probe interaction with a
resonantly absorbing dense extended medium under strong and weak field-matter coupling …

Strontium vapor is pumped by an unfocused, single-mode, pulsed dye laser tuned near the
461 nm resonance transition. With blue laser detuning the previously reported red-shifted …

We report observations of self-focusing and filamentation, ie, the formation of one or more
self-trapped beams, of∼ 3 ns laser pulses in strontium (Sr) vapor. The experimental …