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

TL;DR

This paper analyzes how ultrashort laser pulses' diffraction and dispersion affect optical forces and potentials in air, offering insights for neutral particle laser accelerators relevant to laser-driven nuclear fusion.

Contribution

It presents an analytical solution to the 3D+1 paraxial amplitude equation, revealing the dynamic properties of optical forces considering dispersion and diffraction effects.

Findings

Optical force and potential vary dynamically due to diffraction and dispersion.

Analytical solutions describe the evolution of optical forces over time.

Guidance for developing laser accelerators for nuclear fusion applications.

Abstract

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.