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UV laser-induced ferroelectric domain structures investigated by piezoresponse force microscopy

UV laser-induced ferroelectric domain structures investigated by piezoresponse force microscopy
UV laser-induced ferroelectric domain structures investigated by piezoresponse force microscopy
Ferroelectric domains have been generated on the +z and the -z faces of congruent undoped lithium niobate (LiNbO3) single crystals by direct UV writing using a continuous wave (c.w.) frequency doubled argon ion laser (lambda = 244 nm). The width of the domains was observed to depend on the intensity of the laser beam. Interestingly, also the contrast of the domains seen by piezoresponse force microscopy (PFM) [1] was observed to increase with higher laser intensity. The contrast difference could be attributed to a difference of the depth of these surface domains as the depth sensitivity of the PFM is ~1 µm for LiNbO3.
Jungk, T.
a61978ec-f204-4e78-bd3a-434b17a6739d
Hoffmann, Á.
6a28075e-ac06-43da-83a0-4a192bdc8ed6
Soergel, E.
f4d5aad1-9f81-4877-bceb-33ceed99d9d7
Mailis, Sakellaris
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Muir, A.C.
a203d28e-5947-4743-ade9-8a2e0e6f3419
Wellington, I.T.
7818f50a-3d6c-480d-846a-6e2a24340e4a
Valdivia, C.E.
d9e77b23-1e72-4302-a11c-e6af43f0e518
Sones, C.L.
9de9d8ee-d394-46a5-80b7-e341c0eed0a8
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Jungk, T.
a61978ec-f204-4e78-bd3a-434b17a6739d
Hoffmann, Á.
6a28075e-ac06-43da-83a0-4a192bdc8ed6
Soergel, E.
f4d5aad1-9f81-4877-bceb-33ceed99d9d7
Mailis, Sakellaris
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Muir, A.C.
a203d28e-5947-4743-ade9-8a2e0e6f3419
Wellington, I.T.
7818f50a-3d6c-480d-846a-6e2a24340e4a
Valdivia, C.E.
d9e77b23-1e72-4302-a11c-e6af43f0e518
Sones, C.L.
9de9d8ee-d394-46a5-80b7-e341c0eed0a8
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020

Jungk, T., Hoffmann, Á., Soergel, E., Mailis, Sakellaris, Muir, A.C., Wellington, I.T., Valdivia, C.E., Sones, C.L. and Eason, R.W. (2007) UV laser-induced ferroelectric domain structures investigated by piezoresponse force microscopy. Conference on Lasers and Electro-Optics (CLEO)-Europe/International Quantum Electronics Conference (IQEC): CLEO/IQEC, Munich, Germany. 17 - 22 Jun 2007. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Ferroelectric domains have been generated on the +z and the -z faces of congruent undoped lithium niobate (LiNbO3) single crystals by direct UV writing using a continuous wave (c.w.) frequency doubled argon ion laser (lambda = 244 nm). The width of the domains was observed to depend on the intensity of the laser beam. Interestingly, also the contrast of the domains seen by piezoresponse force microscopy (PFM) [1] was observed to increase with higher laser intensity. The contrast difference could be attributed to a difference of the depth of these surface domains as the depth sensitivity of the PFM is ~1 µm for LiNbO3.

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More information

Published date: June 2007
Additional Information: CE7-4-Thu
Venue - Dates: Conference on Lasers and Electro-Optics (CLEO)-Europe/International Quantum Electronics Conference (IQEC): CLEO/IQEC, Munich, Germany, 2007-06-17 - 2007-06-22

Identifiers

Local EPrints ID: 47813
URI: https://eprints.soton.ac.uk/id/eprint/47813
PURE UUID: d1652158-7e82-4a2b-b262-6cb62f45dc64
ORCID for Sakellaris 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: 13 Aug 2007
Last modified: 14 Mar 2019 01:55

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Contributors

Author: T. Jungk
Author: Á. Hoffmann
Author: E. Soergel
Author: A.C. Muir
Author: I.T. Wellington
Author: C.E. Valdivia
Author: C.L. Sones
Author: R.W. Eason ORCID iD

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