Dynamics of parameters of an erosion torch formed under the action of submicrosecond laser radiation on a zinc target

Investigation of Noble Metals Colloidal Systems Formed by Laser Synthesis at Air

“…Based on the earlier studies of the atmospheric features of the metal laser erosion by submicrosecond (100 ns) highintensity light pulses (λ = 1064 nm) in the air, it has become well-known that ∼50 ns after the laser action (the time comparable to the duration of the rise front of current pulse) 2 Advances in Optical Technologies the plasma jet (or Erosion Laser Torch-ELT) is formed in the surface area of the target [5]. ELT expands in the direction of the external environment, consuming due to the inverse braking effect almost all the energy of the back of the front of the acting optical pulse and, consequently, significantly warms up.…”

Dynamics of thermophysical parameters of silver ablation jets at atmospheric pressure

“…Experimental investigation of the laser ablation of metals is further complicated by the interaction of the jet with incident laser radiation and the significant influence of surrounding gases [1; 2]. At the same time, the modes of high-power nanosecond laser pulses are of considerable interest for research, since the duration of the leading edge of such pulses becomes comparable with the characteristic time scale of relaxation processes in a metal lattice, which allows us to develop extreme methods of metal processing [3].…”