About: Near-field terahertz imaging of ferroelectric domains in barium titanate

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We report on results of a near-field imaging experiment with broadband terahertz pulses applied to a BaTiO3 multidomain single crystal. Data with a spatial resolution below 15 mm were collected by scanning time-domain terahertz imaging setup.We performed the scanning by an asymmetric skewed sapphire probe metallised from two sides ended with a 60 mm Â 140 mm facet. The imaging scans were performed with various angles of the polarisation of the probing field with respect to the direction of the domain walls in order to identify the orientations with optimal sensitivity. The raw experimental data were prewhitened and processed by the singular value decomposition. In this way, independent components belonging to experimental features (polarisation, noise and external perturbations) were found. The spatial resolution of the sensing probe was found significantly higher than that allowed by the outer dimensions of the probe end facet. This result was also confirmed by field simulations. We report on results of a near-field imaging experiment with broadband terahertz pulses applied to a BaTiO3 multidomain single crystal. Data with a spatial resolution below 15 mm were collected by scanning time-domain terahertz imaging setup.We performed the scanning by an asymmetric skewed sapphire probe metallised from two sides ended with a 60 mm Â 140 mm facet. The imaging scans were performed with various angles of the polarisation of the probing field with respect to the direction of the domain walls in order to identify the orientations with optimal sensitivity. The raw experimental data were prewhitened and processed by the singular value decomposition. In this way, independent components belonging to experimental features (polarisation, noise and external perturbations) were found. The spatial resolution of the sensing probe was found significantly higher than that allowed by the outer dimensions of the probe end facet. This result was also confirmed by field simulations. (en)
Title	Near-field terahertz imaging of ferroelectric domains in barium titanate Near-field terahertz imaging of ferroelectric domains in barium titanate (en)
skos:prefLabel	Near-field terahertz imaging of ferroelectric domains in barium titanate Near-field terahertz imaging of ferroelectric domains in barium titanate (en)
skos:notation	RIV/68378271:_____/10:00354486!RIV11-MSM-68378271
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(LC512), Z(AV0Z10100520)
http://linked.open...iv/cisloPeriodika	10-11
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Kadlec, Filip Berta, Milan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	274091
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/10:00354486
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	singular value decomposition; domain structure imaging; near-field terahertz microscopy; subwavelength resolution (en)
http://linked.open.../riv/klicoveSlovo	domain structure imaging near-field terahertz microscopy subwavelength resolution singular value decomposition
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[E851FFCEAE7B]
http://linked.open...i/riv/nazevZdroje	Phase Transitions
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Center for biomolecules and complex molecular systems
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	83
http://linked.open...iv/tvurceVysledku	Kadlec, Filip Berta, Milan
http://linked.open...ain/vavai/riv/wos	000284539500026
http://linked.open...n/vavai/riv/zamer	Specific effects in condensed systems with reduced dimension and broken symmetry
issn	0141-1594
number of pages	9 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Near-field terahertz imaging of ferroelectric domains in barium titanate Near-field terahertz imaging of ferroelectric domains in barium titanate Near-field terahertz imaging of ferroelectric domains in barium titanate

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