Laser-assisted surface and domain microstructuring of lithium niobate
Laser-assisted surface and domain microstructuring of lithium niobate
This thesis presents the results of investigations into the nano-structuring of lithium niobate using the combined or sequential action of laser light and a chemical etch (a mixture of hydrofluoric and nitric acids). Novel methods to characterise ferroelectric domains using Raman spectroscopy and surface second harmonic generation are also described. The use of Raman spectroscopy as a diagnostic technique for recently poled lithium niobate was investigated. The position of several Raman peaks were observed to be shifted following electric-field domain inversion; some these peaks returned to their original positions with a characteristic time constant that is related to the recovery of the internal field of lithium niobate. Surface second harmonic generation was also shown to be able to distinguish between opposite z faces of virgin and poled lithium niobate.
Scott, J.G.
a5e576f1-39c6-4c3b-a0e2-42e388e9b583
1 September 2005
Scott, J.G.
a5e576f1-39c6-4c3b-a0e2-42e388e9b583
Scott, J.G.
(2005)
Laser-assisted surface and domain microstructuring of lithium niobate.
University of Southampton, Optoelectronics Research Centre, Doctoral Thesis, 201pp.
Record type:
Thesis
(Doctoral)
Abstract
This thesis presents the results of investigations into the nano-structuring of lithium niobate using the combined or sequential action of laser light and a chemical etch (a mixture of hydrofluoric and nitric acids). Novel methods to characterise ferroelectric domains using Raman spectroscopy and surface second harmonic generation are also described. The use of Raman spectroscopy as a diagnostic technique for recently poled lithium niobate was investigated. The position of several Raman peaks were observed to be shifted following electric-field domain inversion; some these peaks returned to their original positions with a characteristic time constant that is related to the recovery of the internal field of lithium niobate. Surface second harmonic generation was also shown to be able to distinguish between opposite z faces of virgin and poled lithium niobate.
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Published date: 1 September 2005
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University of Southampton
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Local EPrints ID: 30235
URI: http://eprints.soton.ac.uk/id/eprint/30235
PURE UUID: 74307eb8-68df-41e1-9fbe-453e5cd59750
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Date deposited: 01 Jun 2006
Last modified: 15 Mar 2024 07:39
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Author:
J.G. Scott
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