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Modification of transparent materials by tightly focused annular, radially and azimuthally polarized ultrafast laser beams

Modification of transparent materials by tightly focused annular, radially and azimuthally polarized ultrafast laser beams
Modification of transparent materials by tightly focused annular, radially and azimuthally polarized ultrafast laser beams
Recently, strong longitudinal electric fields have raised great interest in the laser fabrication, microscopy and optical data storage [1]. Here we demonstrate high quality cylindrically polarized annular beam produced by ultrafast laser written spatially variant polarization converter. We observed that nanogratings cannot be formed by strong longitudinal electric fields, created by a ring-shaped radially polarized beam. In addition, the stronger transverse electric field of azimuthal polarization is demonstrated to produce larger retardance.
Zhang, J.
de184393-56fd-4f4d-8019-ae76b3f14b54
Gecevičius, M.
271576ee-dd9d-40b3-ab2f-19686b91dc64
Beresna, M.
a6dc062e-93c6-46a5-aeb3-8de332cdec7b
Kazansky, P.G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Zhang, J.
de184393-56fd-4f4d-8019-ae76b3f14b54
Gecevičius, M.
271576ee-dd9d-40b3-ab2f-19686b91dc64
Beresna, M.
a6dc062e-93c6-46a5-aeb3-8de332cdec7b
Kazansky, P.G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c

Zhang, J., Gecevičius, M., Beresna, M. and Kazansky, P.G. (2013) Modification of transparent materials by tightly focused annular, radially and azimuthally polarized ultrafast laser beams. CLEO/Europe-IQEC 2013, Germany. 12 - 16 May 2013.

Record type: Conference or Workshop Item (Paper)

Abstract

Recently, strong longitudinal electric fields have raised great interest in the laser fabrication, microscopy and optical data storage [1]. Here we demonstrate high quality cylindrically polarized annular beam produced by ultrafast laser written spatially variant polarization converter. We observed that nanogratings cannot be formed by strong longitudinal electric fields, created by a ring-shaped radially polarized beam. In addition, the stronger transverse electric field of azimuthal polarization is demonstrated to produce larger retardance.

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e-pub ahead of print date: 2013
Venue - Dates: CLEO/Europe-IQEC 2013, Germany, 2013-05-12 - 2013-05-16
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 364990
URI: http://eprints.soton.ac.uk/id/eprint/364990
PURE UUID: 5e0b76e1-3d87-4889-81c9-9a8c225c712e

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Date deposited: 20 May 2014 10:57
Last modified: 02 Nov 2017 17:32

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Contributors

Author: J. Zhang
Author: M. Gecevičius
Author: M. Beresna
Author: P.G. Kazansky

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