V. Slavchev | Searcharxiv

arXiv2026

Nonstationary polarization optical forces, considering the influence of dispersion and diffraction

In the present work, the dynamic properties of an attractive longitudinal optical force and the applied potential, due to diffraction and dispersion of ultrashort laser pulses, propagating in air at distances of several diffraction and dispersion lengths, are presented. The results are based on an analytical solution of the linear 3D+1 paraxial amplitude equation and its application to the evolution in time of the longitudinal optical force. The current research provides valuable guidance for the development and creation of neutral particle laser accelerators with potential applications in the field of laser driven nuclear fusion.

physics.optics↗

arXiv2016

Solitons in non-paraxial optics

The well-known (1+1D) nonlinear Schrödinger equation (NSE) governs the propagation of narrow-band pulses in optical fibers and others one-dimensional structures. For exploration the evolution of broad-band optical pulses (femtosecond and attosecond) it is necessary to use the more general nonlinear amplitude equation (GNAE) which differs from NSE with two additional non-paraxial terms. That is way, it is important to make clear the difference between the solutions of these two equations. We found a new analytical soliton solution of GNAE and compare it with the well-known NSE one. It is shown that for the fundamental soliton the main difference between the two solutions is in their phases. It appears that, this changes significantly the evolution of optical pulses in multisoliton regime of propagation and admits a behavior different from that of the higher-order NSE solitons.

physics.optics↗