Ultra-short laser pulse ablation using shear-force feedback:Femtosecond laser induced breakdown Spectroscopy feasibility study

摘要

This work reports on a feasibility study of proximity ablation using femtosecond pulses.Ultra-short pulses were launched to a bare tapered optical fiber and delivered to the sample.The tip-sample distance was controlled by means of shear-force feedback.Consequently,ablation craters with submicrometer dimensions were obtained.Potential analytical applications for Laser Induced Breakdown Spectroscopy (LIBS) technique,such as e.g.inclusions in steel or bio cells,are suggested.