Title :
Charged nano-particles generated at ablation in air and their role in pulsed microdrilling
Author :
Klimentov, S.M. ; Pivovarov, P.A. ; Konov, V.I. ; Walter, Dennis ; Dausinger, F.
Author_Institution :
Russian Acad. of Sci., Moscow
Abstract :
We show that a large portion of it forms a cloud of small particles long time residing in surrounding atmosphere. The cloud can effect ablation by following laser pulses introducing low-threshold plasma ignition. The resulting plasma screening is especially pronounced in long channels, where convection is poor and retardation of drilling rates reaches two orders of magnitude.
Keywords :
drilling; laser ablation; nanoparticles; optical pulse shaping; ablation; charged nanoparticles; laser pulses; low threshold plasma ignition; plasma screening; pulsed microdrilling; Atmosphere; Clouds; Gas lasers; Laser ablation; Optical materials; Optical pulses; Physics; Plasma displays; Plasma materials processing; Pulse generation;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4386666
