ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Preirradiation using vacuum-ultraviolet (VUV) beams of anti-Stokes stimulated Raman scattering VUV laser, followed by the fundamental beam (266 nm) irradiation, provides a novel scheme for fused quartz ablation. The preirradiation of 5th- (171 nm) or 6th- (160 nm) order anti-Stokes beams realizes significant ablation with the succeeding fundamental beam irradiation of a laser fluence less than the ablation threshold. X-ray photoelectron spectroscopy analysis reveals that SiOx(x 〈 2) is created in the fused quartz by photolysis using the anti-Stokes beams. Each effect of the preirradiation and the succeeding fundamental beam irradiation in the ablation process is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.112027