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Form-birefringence in ITO thin films engineered by ultrafast laser nanostructuring

Form-birefringence in ITO thin films engineered by ultrafast laser nanostructuring
Form-birefringence in ITO thin films engineered by ultrafast laser nanostructuring
The field of surface nanostructuring is growing rapidly with the need to search for more advanced fabrication solutions. The major challenge is the lack of appropriate combination of time/cost efficient techniques and medium possessing the advantages of both flexibility and tunable optical properties. Here we demonstrate direct-write femtosecond laser nanostructuring of indium–tin-oxide thin film where the deep-subwavelength ripples with periodicity of down to 120 nm are realized originating the form birefringence (|Δn| ≈ 0.2), which is 2 orders of magnitude higher than the commonly observed in uniaxial crystals or femtosecond laser nanostructured fused quartz. The demonstrated nanoripples with its continuously controlled space-variant orientation lead to the high density two-dimensional printing of flat optical elements. The technique can be extended to any highly transparent films that support laser-induced periodic surface structures, and can be effectively exploited for the integration of polarization sensitive modifications into multidimensional optical data storage.
2944-2951
Čerkauskaite, Aušra
7f5b1e7a-b9f9-41d2-ab4d-307a46605e43
Drevinskas, Rokas
23f858b5-8750-4113-ba11-49cfefc3dbb7
Solodar, Asi
41e89ef8-dda6-4a3b-96e1-086fdcd0c231
Abdulhalim, Ibrahim
a3e64136-bc63-4409-964c-e292b8dad3fa
Kazansky, Peter G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Čerkauskaite, Aušra
7f5b1e7a-b9f9-41d2-ab4d-307a46605e43
Drevinskas, Rokas
23f858b5-8750-4113-ba11-49cfefc3dbb7
Solodar, Asi
41e89ef8-dda6-4a3b-96e1-086fdcd0c231
Abdulhalim, Ibrahim
a3e64136-bc63-4409-964c-e292b8dad3fa
Kazansky, Peter G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c

Čerkauskaite, Aušra, Drevinskas, Rokas, Solodar, Asi, Abdulhalim, Ibrahim and Kazansky, Peter G. (2017) Form-birefringence in ITO thin films engineered by ultrafast laser nanostructuring. ACS Photonics, 4 (11), 2944-2951. (doi:10.1021/acsphotonics.7b01082).

Record type: Article

Abstract

The field of surface nanostructuring is growing rapidly with the need to search for more advanced fabrication solutions. The major challenge is the lack of appropriate combination of time/cost efficient techniques and medium possessing the advantages of both flexibility and tunable optical properties. Here we demonstrate direct-write femtosecond laser nanostructuring of indium–tin-oxide thin film where the deep-subwavelength ripples with periodicity of down to 120 nm are realized originating the form birefringence (|Δn| ≈ 0.2), which is 2 orders of magnitude higher than the commonly observed in uniaxial crystals or femtosecond laser nanostructured fused quartz. The demonstrated nanoripples with its continuously controlled space-variant orientation lead to the high density two-dimensional printing of flat optical elements. The technique can be extended to any highly transparent films that support laser-induced periodic surface structures, and can be effectively exploited for the integration of polarization sensitive modifications into multidimensional optical data storage.

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ITO_nanostructuring_ORC_v10_revised_final - Accepted Manuscript
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More information

Accepted/In Press date: 24 October 2017
e-pub ahead of print date: 24 October 2017
Published date: 15 November 2017

Identifiers

Local EPrints ID: 416511
URI: http://eprints.soton.ac.uk/id/eprint/416511
PURE UUID: 90cf3cd4-c397-426d-861a-b68fad60ed20
ORCID for Aušra Čerkauskaite: ORCID iD orcid.org/0000-0002-2476-7797

Catalogue record

Date deposited: 20 Dec 2017 17:30
Last modified: 07 Oct 2020 05:38

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Contributors

Author: Aušra Čerkauskaite ORCID iD
Author: Rokas Drevinskas
Author: Asi Solodar
Author: Ibrahim Abdulhalim

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