Light erosive optical discharges investigation. I. Investigation of radially confined light erosive pulsed optical discharges
Impact area radial confinements at laser ablation may be natural (at deep holes drilling) or artificial, mainly made for recoil momentum generation efficiency or short wavelength radiation intensity increase. Optical discharges with an ablating wall (excitation time τ ~ 10-8 s) in a square channel dynamics and macrostructure experimental investigation results are presented both for ambient and vacuum conditions.