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UV laser-induced ordered surface nanostructures in congruent lithium niobate single crystals

UV laser-induced ordered surface nanostructures in congruent lithium niobate single crystals
UV laser-induced ordered surface nanostructures in congruent lithium niobate single crystals
UV laser-induced ordered surface nanostructures in congruent lithium niobate single crystals. Ultra violet illumination of the -z face of lithium niobate single crystals, under specific conditions, results in an organized arrangement of submicron etch-resistant features that reflect the illuminating intensity distribution. Consequently, spatially resolved illumination can produce periodic structures with submicron periodicity. Furthermore, a size self-adjustment of the submicron etch resistant features was observed which is related to characteristic lengths (e.g. grating period) of the overall structure. The effect occurs for a narrow range of illuminating intensities and is attributed to a photo-induced electrostatic charge distribution which modifies the electrochemical interaction of the acid with the surface. The size and periodicity of the structures which can be achieved with this method are suitable for the fabrication of 2D photonic crystal structures in this electro-optically tunable material.
submicron, lithium niobate, laser-induced, nanostructure
0169-4332
497-503
Mailis, S.
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Sones, C.L.
9de9d8ee-d394-46a5-80b7-e341c0eed0a8
Scott, J.G.
a5e576f1-39c6-4c3b-a0e2-42e388e9b583
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Mailis, S.
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Sones, C.L.
9de9d8ee-d394-46a5-80b7-e341c0eed0a8
Scott, J.G.
a5e576f1-39c6-4c3b-a0e2-42e388e9b583
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020

Mailis, S., Sones, C.L., Scott, J.G. and Eason, R.W. (2005) UV laser-induced ordered surface nanostructures in congruent lithium niobate single crystals. Applied Surface Science, 247 (1-4), 497-503. (doi:10.1016/j.apsusc.2005.01.065).

Record type: Article

Abstract

UV laser-induced ordered surface nanostructures in congruent lithium niobate single crystals. Ultra violet illumination of the -z face of lithium niobate single crystals, under specific conditions, results in an organized arrangement of submicron etch-resistant features that reflect the illuminating intensity distribution. Consequently, spatially resolved illumination can produce periodic structures with submicron periodicity. Furthermore, a size self-adjustment of the submicron etch resistant features was observed which is related to characteristic lengths (e.g. grating period) of the overall structure. The effect occurs for a narrow range of illuminating intensities and is attributed to a photo-induced electrostatic charge distribution which modifies the electrochemical interaction of the acid with the surface. The size and periodicity of the structures which can be achieved with this method are suitable for the fabrication of 2D photonic crystal structures in this electro-optically tunable material.

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More information

Published date: 2005
Keywords: submicron, lithium niobate, laser-induced, nanostructure

Identifiers

Local EPrints ID: 21014
URI: https://eprints.soton.ac.uk/id/eprint/21014
ISSN: 0169-4332
PURE UUID: 2d9938d0-0de6-4bf7-98cc-c7bdd56bf327
ORCID for S. Mailis: ORCID iD orcid.org/0000-0001-8100-2670
ORCID for R.W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

Catalogue record

Date deposited: 07 Mar 2006
Last modified: 20 Jul 2019 01:25

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Contributors

Author: S. Mailis ORCID iD
Author: C.L. Sones
Author: J.G. Scott
Author: R.W. Eason ORCID iD

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