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Ablation control by applying magnetic and electric fields
Author(s): Jovan Maksimovic; Tomas Katkus; Soon Hock Ng; Saulius Juodkazis
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Paper Abstract

Laser fabrication with ultra-short laser pulses (sub-1 ps) have the ability for precise energy delivery to target materials for ablation, spallation or polymerisation down to sub-wavelength resolution. We show, that by applying electrical and magnetic fields, the electron-ion ablation plasma can be controlled following the Lorentz force exerted on to the plasma F = eE + e[v ×B], where v is velocity of charge e, E is the applied electrical bias and B is the magnetic flux density. The vectorial nature of the Lorentz force was investigated using the ablation of silicon. The application potential for ablation debris control and mass, charge spectroscopes of ablated materials is discussed.

Paper Details

Date Published: 31 December 2019
PDF: 3 pages
Proc. SPIE 11201, SPIE Micro + Nano Materials, Devices, and Applications 2019, 1120106 (31 December 2019); doi: 10.1117/12.2541090
Show Author Affiliations
Jovan Maksimovic, Swinburne Univ. of Technology (Australia)
Melbourne Ctr. for Nanofabrication (Australia)
Tomas Katkus, Swinburne Univ. of Technology (Australia)
Melbourne Ctr. for Nanofabrication (Australia)
Soon Hock Ng, Swinburne Univ. of Technology (Australia)
Melbourne Ctr. for Nanofabrication (Australia)
Saulius Juodkazis, Swinburne Univ. of Technology (Australia)
Melbourne Ctr. for Nanofabrication (Australia)


Published in SPIE Proceedings Vol. 11201:
SPIE Micro + Nano Materials, Devices, and Applications 2019
M. Cather Simpson; Saulius Juodkazis, Editor(s)

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