Ultrafast laser-induced metasurfaces for geometric phase manipulation
Ultrafast laser-induced metasurfaces for geometric phase manipulation
Direct-write femtosecond laser nanostructuring of 300 nanometer thick a-Si:H films results in space-variant functional metasurfaces with form birefringence of up to ne-no=–0.5. Engineering the orientation of local optical axis allows implementing continuous phase profiles of nearly any optical element including arrays of polarization micro-converters and micro lenses, polarization gratings and computer generated holograms with continuous phase gradients of ~1 rad/µm.
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Drevinskas, Rokas
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Beresna, Martynas
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Zhang, Jingyu
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Kazanskii, Andrey
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Kazansky, Peter
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Drevinskas, Rokas
edfc60c3-d75f-4ce5-ad22-9f027b7eeda1
Beresna, Martynas
a6dc062e-93c6-46a5-aeb3-8de332cdec7b
Zhang, Jingyu
de184393-56fd-4f4d-8019-ae76b3f14b54
Kazanskii, Andrey
1cfbbe0d-f3d6-4c76-9cd0-c6da5133d1b4
Kazansky, Peter
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Drevinskas, Rokas, Beresna, Martynas, Zhang, Jingyu, Kazanskii, Andrey and Kazansky, Peter
(2016)
Ultrafast laser-induced metasurfaces for geometric phase manipulation.
Advanced Optical Materials, .
(doi:10.1002/adom.201600575).
Abstract
Direct-write femtosecond laser nanostructuring of 300 nanometer thick a-Si:H films results in space-variant functional metasurfaces with form birefringence of up to ne-no=–0.5. Engineering the orientation of local optical axis allows implementing continuous phase profiles of nearly any optical element including arrays of polarization micro-converters and micro lenses, polarization gratings and computer generated holograms with continuous phase gradients of ~1 rad/µm.
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AOM_Commun_aSi_converters_18_10_2016.doc
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Submitted date: 19 July 2016
Accepted/In Press date: 19 October 2016
e-pub ahead of print date: 7 December 2016
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 403922
URI: http://eprints.soton.ac.uk/id/eprint/403922
PURE UUID: 6a64e012-0235-46f5-924b-4478fda30694
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Date deposited: 16 Dec 2016 11:17
Last modified: 15 Mar 2024 06:09
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Author:
Rokas Drevinskas
Author:
Jingyu Zhang
Author:
Andrey Kazanskii
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