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
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
2005
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), .
(doi:10.1016/j.apsusc.2005.01.065).
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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Published date: 2005
Keywords:
submicron, lithium niobate, laser-induced, nanostructure
Identifiers
Local EPrints ID: 21014
URI: http://eprints.soton.ac.uk/id/eprint/21014
ISSN: 0169-4332
PURE UUID: 2d9938d0-0de6-4bf7-98cc-c7bdd56bf327
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Date deposited: 07 Mar 2006
Last modified: 16 Mar 2024 02:38
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Author:
S. Mailis
Author:
J.G. Scott
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