About: Near infrared quazi-omnidirectional reflector in chalcogenide glasses

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About: Near infrared quazi-omnidirectional reflector in chalcogenide glasses Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The quazi-omnidirectional reflector was designed as a planar quarter wave stack consisting of the alternating amorphous chalcogenide Ge25S75 and Sb40Se60 films. Photonic bandgap calculation of the intended reflector predicted 240 nm omnidirectional and 450 nm normal incidence first-order bandgaps centred near 1.55 lm for appropriate values of the index of refraction and thickness of the films. The TEM and HR-TEM images of the prepared 7.5 pairs reflector verified good periodicity, smooth interface and amorphous structure of the chalcogenide films deposited by thermal and flash evaporation, respectively. The optical reflectivity measurements revealed 98.8% normal incidence stopband of the reflector at 1.55 um. We also report the ellipsometry study of the prepared reflector. The TEM and ellipsometry studies confirmed the thickness variation of prepared individual layers to be ?7 and ?9 nm, respectively, compared to theoretical predictions. The quazi-omnidirectional reflector was designed as a planar quarter wave stack consisting of the alternating amorphous chalcogenide Ge25S75 and Sb40Se60 films. Photonic bandgap calculation of the intended reflector predicted 240 nm omnidirectional and 450 nm normal incidence first-order bandgaps centred near 1.55 lm for appropriate values of the index of refraction and thickness of the films. The TEM and HR-TEM images of the prepared 7.5 pairs reflector verified good periodicity, smooth interface and amorphous structure of the chalcogenide films deposited by thermal and flash evaporation, respectively. The optical reflectivity measurements revealed 98.8% normal incidence stopband of the reflector at 1.55 um. We also report the ellipsometry study of the prepared reflector. The TEM and ellipsometry studies confirmed the thickness variation of prepared individual layers to be ?7 and ?9 nm, respectively, compared to theoretical predictions. (en)
Title	Near infrared quazi-omnidirectional reflector in chalcogenide glasses Near infrared quazi-omnidirectional reflector in chalcogenide glasses (en)
skos:prefLabel	Near infrared quazi-omnidirectional reflector in chalcogenide glasses Near infrared quazi-omnidirectional reflector in chalcogenide glasses (en)
skos:notation	RIV/00216275:25310/09:00008310!RIV10-MSM-25310___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GP203/08/P204), P(LC523), Z(MSM0021627501)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Orava, Jiří Wágner, Tomáš Frumar, Miloslav Kohoutek, Tomáš Mistrík, Jan
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	Univerzita Pardubice / Fakulta chemicko-technologická
http://linked.open...dnocenehoVysledku	328806
http://linked.open...ai/riv/idVysledku	RIV/00216275:25310/09:00008310
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	amorphous semiconductors; chalcogenides; multilayers; reflectors; ellipsometry (en)
http://linked.open.../riv/klicoveSlovo	ellipsometry chalcogenides multilayers amorphous semiconductors reflectors
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[9FA2B77B4CCD]
http://linked.open...i/riv/nazevZdroje	Optical Materials
http://linked.open...in/vavai/riv/obor	CA
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Perspective inorganic materials 1D-photonic crystals based on amorphous chalcogenide thin films
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	32
http://linked.open...iv/tvurceVysledku	Frumar, Miloslav Kohoutek, Tomáš Orava, Jiří Přikryl, Jan Wágner, Tomáš Mistrík, Jan
http://linked.open...n/vavai/riv/zamer	Aimed preparation of special compounds and materials and investigation of their physical and chemical properties and supramolecular structures
issn	0925-3467
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	25310

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