Electron collision rate in ultrashort laser-metal interaction inferred from reflectivity measurements - Archive ouverte HAL Access content directly
Books Year : 2021

Electron collision rate in ultrashort laser-metal interaction inferred from reflectivity measurements

(1) , (1) , (1)
1

Abstract

We study optical laser coupling of four metals (aluminum, copper, nickel and tungsten) upon single ultrashort 30-fs laser irradiation. Using dedicated experimental methodology, we carefully monitor the evolution of the material reflectivity integrated over the femtosecond pulse duration. We further apply the Drude-Lorentz formalism to infer the evolution of the effective electron collision rate eff as a function of applied fluence. The knowledge of this parameter is of paramount importance in any lasermatter interaction situation because of its immediate impact on laser energy coupling in material and on its subsequent macroscopic transformation.
Not file

Dates and versions

hal-03441828 , version 1 (07-01-2022)

Identifiers

  • HAL Id : hal-03441828 , version 1

Cite

T Genieys, M Sentis, O Utéza (Dir.). Electron collision rate in ultrashort laser-metal interaction inferred from reflectivity measurements. 2021. ⟨hal-03441828⟩

Collections

CNRS UNIV-AMU LP3
8 View
2 Download

Share

Gmail Facebook Twitter LinkedIn More