Affiliation:
1. Osaka University
2. Fukui University of Technology
Abstract
Dependence of the femtosecond laser ablation depth on the laser pulse energy was
investigated for Zr55Al10Ni5Cu30 bulk metallic glass. Investigation of the femtosecond laser ablation
of bulk metallic glasses has not been reported. Femtosecond laser pulses (wavelength of 800 nm,
pulse width of 100 fs, pulse energies of 2 – 900 μJ) were focused and irradiated on the polished
surface of metals in air. The ablation depth of the metallic glass is deeper than that of its crystallized
metal at a pulse energy in the strong ablation region. We suggest that the energy loss at grain
boundaries of hot electrons which is accelerated by the laser electric field influence the ablation
depth in the strong ablation region.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Cited by
10 articles.
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