# Identification of Laser Parameters Acting on an Axisymmetric Domain Using an Artificial Immune System

## TL;DR

This paper uses an artificial immune system to identify laser parameters for controlling metal ablation in an axisymmetric domain.

## Contribution

The novelty lies in applying an artificial immune system to identify laser intensity and pulse time in a two-temperature model for metal ablation.

## Key findings

- Laser intensity and pulse time were successfully identified for controlling ablated gap dimensions.
- The hyperbolic two-temperature model with coupled electron and phonon equations was effectively implemented.
- The artificial immune system proved efficient in solving the inverse problem for laser parameter identification.

## Abstract

The paper presents the control of the ablated gap of required dimensions in an axisymmetric domain made of metal. For this purpose, two parameters of the laser interacting on this layer were identified, which means laser intensity and characteristic time of the laser pulse. A hyperbolic two-temperature model was applied. This is a model in which there are two coupled equations for electrons and phonons. The model was supplemented with appropriate boundary and initial conditions. The direct problem was solved using the finite difference method with a staggered grid. An artificial immune system was used for the identification process.