We create optical precursors by propagating a step-modulated optical pulse through a linear
resonant dielectric absorber. The field emerging from the dielectric consists of a several …

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 …

We report theoretical and experimental studies of the propagation of a square-modulated
laser pulse through a laser-cooled atomic ensemble of two-level absorbers, as well as …

This article mainly deals with the propagation of step-modulated light pulses in a dense
Lorentz medium at distances such that the medium is opaque in a broad spectral region …

We study theoretically the propagation of a step-modulated optical field as it passes through
a dispersive dielectric made up of a dilute collection of oscillators characterized by a single …

A general factorized form of the dielectric function together with a fractional model-based
parameter estimation method is used to provide an accurate analytical formula for the …

We numerically calculated the formation of Brillouin precursor in a single resonance Lorentz
medium. The contribution from medium dispersion and absorption in the formation of …

The recent interest in precursors has been fuelled by the possibility of using them for the
efficient transmission of information through absorbing media at radio or optical frequencies …

We investigate the linear propagation of 800 and 1530 nm ultrashort optical pulses in water.
For all pulse repetition rates studied, we observe pure exponential decay down to a …

This paper presents a generalized definition for precursors, which are transients that appear
when ultra-short pulses propagate through a dielectric. It also investigates under what …