About: Electric-field-tunable defect mode in one-dimensional photonic crystal operating in the terahertz range

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About: Electric-field-tunable defect mode in one-dimensional photonic crystal operating in the terahertz range Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	A one-dimensional photonic crystal possessing an electric-field-tunable defect mode in the lowest forbidden band is demonstrated. The compact photonic structure consists of two symmetric Bragg mirrors made of alternate quarter-wave layers of SiO2 and CeO2 separated by a defect layer of an incipient ferroelectric SrTiO3 with electrodes transparent for terahertz radiation on its both sides. The applied bias is then perpendicular to the layer and modifies the in-plane dielectric function, which is probed by the transverse terahertz wave. The observed tunable behavior is in agreement with the model of the ferroelectric soft mode behavior in SrTiO3 single crystals. The defect-mode frequency tunability is proportional to that of the soft mode: we achieved a relative tunability of 6.5% at 105K under an electric bias of 60 kV/cm. A one-dimensional photonic crystal possessing an electric-field-tunable defect mode in the lowest forbidden band is demonstrated. The compact photonic structure consists of two symmetric Bragg mirrors made of alternate quarter-wave layers of SiO2 and CeO2 separated by a defect layer of an incipient ferroelectric SrTiO3 with electrodes transparent for terahertz radiation on its both sides. The applied bias is then perpendicular to the layer and modifies the in-plane dielectric function, which is probed by the transverse terahertz wave. The observed tunable behavior is in agreement with the model of the ferroelectric soft mode behavior in SrTiO3 single crystals. The defect-mode frequency tunability is proportional to that of the soft mode: we achieved a relative tunability of 6.5% at 105K under an electric bias of 60 kV/cm. (en)
Title	Electric-field-tunable defect mode in one-dimensional photonic crystal operating in the terahertz range Electric-field-tunable defect mode in one-dimensional photonic crystal operating in the terahertz range (en)
skos:prefLabel	Electric-field-tunable defect mode in one-dimensional photonic crystal operating in the terahertz range Electric-field-tunable defect mode in one-dimensional photonic crystal operating in the terahertz range (en)
skos:notation	RIV/68378271:_____/13:00395183!RIV14-GA0-68378271
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA13-12386S)
http://linked.open...iv/cisloPeriodika	24
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Kužel, Petr Němec, Hynek Kadlec, Christelle Skoromets, Volodymyr
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	72332
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/13:00395183
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	terahertz spectroscopy; strontium titanate; dielectric properties; photonic crystal (en)
http://linked.open.../riv/klicoveSlovo	strontium titanate terahertz spectroscopy dielectric properties photonic crystal
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[79EE3AF91BE0]
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	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Fotovodivost a dynamika excitací v nanostrukturovaných a neuspořádaných polovodičích na ultrarychlé časové škále
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	102
http://linked.open...iv/tvurceVysledku	Fattakhova-Rohlfing, D. Kužel, Petr Němec, Hynek Skoromets, Volodymyr Kadlec, Christelle
http://linked.open...ain/vavai/riv/wos	000320962400006
issn	0003-6951
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1063/1.4809821

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