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.
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Hoffmann, Á.
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Soergel, E.
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Mailis, Sakellaris
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Muir, A.C.
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Wellington, I.T.
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Valdivia, C.E.
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Sones, C.L.
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Eason, R.W.
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June 2007
Jungk, T.
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Hoffmann, Á.
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Soergel, E.
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Mailis, Sakellaris
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Muir, A.C.
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Wellington, I.T.
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Valdivia, C.E.
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Sones, C.L.
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Eason, R.W.
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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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Published date: June 2007
Additional Information:
CE7-4-Thu
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Conference on Lasers and Electro-Optics (CLEO)-Europe/International Quantum Electronics Conference (IQEC): CLEO/IQEC, , Munich, Germany, 2007-06-17 - 2007-06-22
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Local EPrints ID: 47813
URI: http://eprints.soton.ac.uk/id/eprint/47813
PURE UUID: d1652158-7e82-4a2b-b262-6cb62f45dc64
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Date deposited: 13 Aug 2007
Last modified: 16 Mar 2024 02:38
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Contributors
Author:
T. Jungk
Author:
Á. Hoffmann
Author:
E. Soergel
Author:
Sakellaris Mailis
Author:
A.C. Muir
Author:
I.T. Wellington
Author:
C.E. Valdivia
Author:
C.L. Sones
Author:
R.W. Eason
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