Complete numerical description of the laser-induced thermal profile in a liquid, to explain complex self-induced diffraction patterns
Abstract
In the past, laser propagation in a fluid with heat transfer has been modeled using simplistic conduction and convection conditions yielding inaccurate predictions. Here we present a detailed numerical study describing the thermal profile of the fluid and its interaction with the laser. Furthermore, we evaluate the diffraction field in the far field produced by a pump beam impinging in the fluid and the interferometric pattern obtained normal to the propagation direction to test our model. Direct comparison between experimental results and numerical simulation allows for a complete understanding of the energy transfer from the laser to the liquid and the subsequent effect on the laser propagation. Spatial self-phase modulation and propagation control from small-phase diffraction to aberration-controlled diffraction and up to diffraction oscillation are observed and explained with our modeling.
Cite
@article{arxiv.2208.06489,
title = {Complete numerical description of the laser-induced thermal profile in a liquid, to explain complex self-induced diffraction patterns},
author = {J. L. Domínguez-Juárez and M. A. Quiroz-Juárez and J. L. Aragón and R. Quintero-Bermúdez and R. Quintero-Torres},
journal= {arXiv preprint arXiv:2208.06489},
year = {2023}
}