Title :
Focused femtosecond vortex laser pulse
Author :
Shvedov, Vladlen G. ; Hnatovsky, Cyril ; Krolikowski, Wieslaw ; Rode, Andrei V.
Author_Institution :
Laser Phys. Centre, Australian Nat. Univ., Canberra, ACT, Australia
Abstract :
Double-charge femtosecond vortices were synthesized with the polarization-singularity beam converter [1]. The vortex was focused using moderate and high numerical aperture optics (NA = 0.45 and 0.9) to ablate fused silica and soda-lime glasses. The results demonstrate that the ablation can be controlled on a sub-micrometer scale with a high degree of repeatability.
Keywords :
high-speed optical techniques; laser ablation; optical focusing; optical frequency conversion; optical glass; optical vortices; silicon compounds; SiO2; double-charge femtosecond vortices; focused femtosecond vortex laser pulse; fused silica; numerical aperture optics; polarization-singularity beam converter; soda-lime glasses; submicrometer scale; Crystals; Laser beams; Optical filters; Optical polarization; Optical pulses; Optical vortices; Ultrafast optics;
Conference_Titel :
Laser and Fiber-Optical Networks Modeling (LFNM), 2010 10th International Conference on
Conference_Location :
Sevastopol
Print_ISBN :
978-1-4244-6994-9
DOI :
10.1109/LFNM.2010.5624211
