Dynamic beam shaping with polarization control at the image plane for material processing

Tang, Y ORCID: 0000-0002-4232-2513, Li, J, Zhou, T, Schille, J, Loeschner, U, Perrie, W, Dearden, G ORCID: 0000-0003-0648-7473 and Edwardson, SP ORCID: 0000-0001-5239-4409 (2018) Dynamic beam shaping with polarization control at the image plane for material processing. 10TH CIRP CONFERENCE ON PHOTONIC TECHNOLOGIES [LANE 2018], 74. pp. 581-584.

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Abstract

The polarization state and beam shape of an ultrafast laser have been dynamically controlled using a spatial light modulator (SLM) with an additional S-waveplate (Altechena) for applications in material processing. Consequently, two different advanced states of polarization, radial and azimuthal, several star beam shapes were dynamically switched while synchronized with a motion control system. Imprinting laser induced plasmonic periodic surface structures(LIPSS) was employed to investigate the detailed vector fields at the image plane. The ablation footprint was found to match the selected beam shape and polarization states acurately.

Item Type:	Article
Uncontrolled Keywords:	Beam shaping, Polarization control, Spatial light modulator, S-waveplate, LIPSS
Depositing User:	Symplectic Admin
Date Deposited:	15 Mar 2019 09:50
Last Modified:	19 Jan 2023 00:57
DOI:	10.1016/j.procir.2018.08.083
Open Access URL:	https://doi.org/10.1016/j.procir.2018.08.083
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3034316