Ultra-thin rapeseed oil-assisted femtosecond laser etching on quartz glass microgrooves.

ABSTRACT: Liquid-assisted methods can effectively suppress thermal effects, such as recrystallization, micro-cracks, and edge collapses of hard and brittle materials in femtosecond laser processing in air. However, the small and numerous bubbles generated by water solvents seriously affect laser processing efficiency. We have investigated ultra-thin rapeseed oil-assisted (approximately 58 μ m thickness) femtosecond laser processing of quartz glass microgrooves. Experimental results show that rapeseed oil-assisted laser ablation reduces the adverse effects of bubbles through the bubble coalescence effect but also helps to discharge the bottom debris via the formed micro-jet. According to the ionization model with the Drude equation, the laser intensity to reach the damage threshold of quartz in rap

SUBMITTER: Liu J 

PROVIDER: S-EPMC11869957 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature