Light induced frustration of etching in Fe doped LiNbO3
Light induced frustration of etching in Fe doped LiNbO3
We report the results of light-induced frustration of the normal etching behaviour observed when LiNbO3 is immersed in a solution of HF and HNO3 acids. Light of wavelength 488 nm, from an air-cooled 100 mW Ar ion laser, is incident on the rear surface (+z-face) of a thin Fe-doped LiNbO3 sample, whose front face (-z-face) is in contact with the etchant solution. At power densities of > 100 W /cm2, etching is suppressed through light-induced charge migration. Below this power density, partial suppression occurs, leading to submicron scale features, whose orientation follows the crystal symmetry.
328-331
Barry, I.E.
d4c9ca54-8091-495f-81b3-a73c4fea734d
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Cook, Gary
c33461e4-ea73-4b67-bdf8-9940f9c90f75
April 1999
Barry, I.E.
d4c9ca54-8091-495f-81b3-a73c4fea734d
Eason, R.W.
e38684c3-d18c-41b9-a4aa-def67283b020
Cook, Gary
c33461e4-ea73-4b67-bdf8-9940f9c90f75
Barry, I.E., Eason, R.W. and Cook, Gary
(1999)
Light induced frustration of etching in Fe doped LiNbO3.
Applied Surface Science, 143 (1-4), .
(doi:10.1016/S0169-4332(99)00087-2).
Abstract
We report the results of light-induced frustration of the normal etching behaviour observed when LiNbO3 is immersed in a solution of HF and HNO3 acids. Light of wavelength 488 nm, from an air-cooled 100 mW Ar ion laser, is incident on the rear surface (+z-face) of a thin Fe-doped LiNbO3 sample, whose front face (-z-face) is in contact with the etchant solution. At power densities of > 100 W /cm2, etching is suppressed through light-induced charge migration. Below this power density, partial suppression occurs, leading to submicron scale features, whose orientation follows the crystal symmetry.
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Published date: April 1999
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Local EPrints ID: 78936
URI: http://eprints.soton.ac.uk/id/eprint/78936
ISSN: 0169-4332
PURE UUID: 2b34c098-23ee-4d5f-b154-b63032c65d0f
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:33
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Author:
I.E. Barry
Author:
R.W. Eason
Author:
Gary Cook
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