Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/144719
Title: Fundamental mechanisms of nanosecond-laser-ablation enhancement by an axial magnetic field
Authors: Farrokhi, Hamid
Gruzdev, Vitaly
Zheng, Hongyu
Zhou, Wei
Keywords: Engineering::Mechanical engineering
Issue Date: 2019
Source: Farrokhi, H., Gruzdev, V., Zheng, H., & Zhou, W. (2019). Fundamental mechanisms of nanosecond-laser-ablation enhancement by an axial magnetic field. Journal of the Optical Society of America B, 36(4), 1091–1100. doi:10.1364/josab.36.001091
Journal: Journal of the Optical Society of America B
Abstract: A steady magnetic field perpendicular to a laser beam is widely used to improve the rate and quality of laser ablation. Recently, we reported a 69-fold enhancement of laser ablation of silicon using a magnetic field parallel to a laser beam. To understand the fundamental mechanisms of that phenomenon, multipulse magnetic-field-enhanced ablation of stainless steel, titanium alloy, and silicon was performed. The influence of magnetic field varies significantly depending on the material: from 2.8-fold ablation enhancement on stainless steel and silicon to no pronounced ablation modification on titanium alloy. Those results are discussed in terms of magnetized-plasma, magneto-absorption, skin-layer, and magnetic-field-influenced transport effects. Understanding of those mechanisms is crucial for advanced control of nanosecond laser–surface coupling to improve laser micromachining.
URI: https://hdl.handle.net/10356/144719
ISSN: 0740-3224
DOI: 10.1364/JOSAB.36.001091
Rights: © 2019 Optical Society of America. All rights reserved. This paper was published in Journal of the Optical Society of America B and is made available with permission of Optical Society of America.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

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