About: Resonant magnetic response of TiO2 microspheres at terahertz frequencies

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Spray-drying technique is used to fabricate spherical microparticles out of dissolved TiO2 nanoparticles. We show both experimentally and through numerical calculations that the microspheres support a Mie resonance, leading to an effective magnetic response. For this purpose, nearly single layers of microspheres were prepared and characterized by time-domain terahertz spectroscopy. We developed an experimental approach allowing simultaneous measurement of complex transmittance and reflectance of a thin layer, which in turn enables evaluation of its effective dielectric permittivity and effective magnetic permeability. Numerical finite-element-method calculations of the electromagnetic response show that the prepared microparticles are suitable for preparing a metamaterial with negative effective magnetic permeability. Spray-drying technique is used to fabricate spherical microparticles out of dissolved TiO2 nanoparticles. We show both experimentally and through numerical calculations that the microspheres support a Mie resonance, leading to an effective magnetic response. For this purpose, nearly single layers of microspheres were prepared and characterized by time-domain terahertz spectroscopy. We developed an experimental approach allowing simultaneous measurement of complex transmittance and reflectance of a thin layer, which in turn enables evaluation of its effective dielectric permittivity and effective magnetic permeability. Numerical finite-element-method calculations of the electromagnetic response show that the prepared microparticles are suitable for preparing a metamaterial with negative effective magnetic permeability. (en)
Title	Resonant magnetic response of TiO2 microspheres at terahertz frequencies Resonant magnetic response of TiO2 microspheres at terahertz frequencies (en)
skos:prefLabel	Resonant magnetic response of TiO2 microspheres at terahertz frequencies Resonant magnetic response of TiO2 microspheres at terahertz frequencies (en)
skos:notation	RIV/68378271:_____/12:00377068!RIV13-AV0-68378271
http://linked.open...avai/predkladatel	Fyzikální ústav AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA100100907), Z(AV0Z10100520)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Kužel, Petr Němec, Hynek Kadlec, Filip Kadlec, Christelle
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	165242
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/12:00377068
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	metamaterials; terahertz spectroscopy; effective magnetic properties (en)
http://linked.open.../riv/klicoveSlovo	terahertz spectroscopy metamaterials effective magnetic properties
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[BEDCC6E74B60]
http://linked.open...i/riv/nazevZdroje	Applied Physics Letters
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	9 (xsd:int)
http://linked.open...vavai/riv/projekt	Actively tunable structures and metamaterials for the terahertz range
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	100
http://linked.open...iv/tvurceVysledku	Kužel, Petr Němec, Hynek Chung, U.-C. Elissalde, C. Maglione, M. Kadlec, Christelle Kadlec, Filip Mounaix, P. Yahiaoui, R.
http://linked.open...ain/vavai/riv/wos	000300214000017
http://linked.open...n/vavai/riv/zamer	Specific effects in condensed systems with reduced dimension and broken symmetry
issn	0003-6951
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1063/1.3683540
is http://linked.open...avai/riv/vysledek of	Resonant magnetic response of TiO2 microspheres at terahertz frequencies

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