About: Position sensing with suppression of the drift of the refractive index of air for high resolution interferometry

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We present an interferometric technique based on differential interferometry setup for measurement in the subnanometer scale in atmospheric conditions. One of the important limiting factors in any optical measurement are fluctuations of the refractive index of air representing a source of uncertainty traditionally compensated when the index is evaluated indirectly from the physical parameters of the atmosphere. Our proposal is based on the concept of overdetermined interferometric setup where a reference length is derived from a mechanical frame made from a material with very low thermal coefficient on the 1xE-8 level. The technique allows to track the variations of the refractive index of air on-line directly in the line of the measuring beam and to compensate for the fluctuations. The optical setup consists of three interferometers sharing the same beam path where two measure differentially the displacement while the third evaluates the changes in the measuring range acting as a tracking refractometer. The principle is demonstrated on an experimental setup and a set of measurements describing the performance is presented. We present an interferometric technique based on differential interferometry setup for measurement in the subnanometer scale in atmospheric conditions. One of the important limiting factors in any optical measurement are fluctuations of the refractive index of air representing a source of uncertainty traditionally compensated when the index is evaluated indirectly from the physical parameters of the atmosphere. Our proposal is based on the concept of overdetermined interferometric setup where a reference length is derived from a mechanical frame made from a material with very low thermal coefficient on the 1xE-8 level. The technique allows to track the variations of the refractive index of air on-line directly in the line of the measuring beam and to compensate for the fluctuations. The optical setup consists of three interferometers sharing the same beam path where two measure differentially the displacement while the third evaluates the changes in the measuring range acting as a tracking refractometer. The principle is demonstrated on an experimental setup and a set of measurements describing the performance is presented. (en)
Title	Position sensing with suppression of the drift of the refractive index of air for high resolution interferometry Position sensing with suppression of the drift of the refractive index of air for high resolution interferometry (en)
skos:prefLabel	Position sensing with suppression of the drift of the refractive index of air for high resolution interferometry Position sensing with suppression of the drift of the refractive index of air for high resolution interferometry (en)
skos:notation	RIV/68081731:_____/14:00434225!RIV15-TA0-68081731
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(ED0017/01/01), P(LO1212), P(TA02010711), P(TE01020233)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Buchta, Zdeněk Číp, Ondřej Lazar, Josef Holá, Miroslava
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav přístrojové techniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	37704
http://linked.open...ai/riv/idVysledku	RIV/68081731:_____/14:00434225
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	refractive index of air; interferometry; Edlen formula (en)
http://linked.open.../riv/klicoveSlovo	refractive index of air interferometry Edlen formula
http://linked.open...ontrolniKodProRIV	[51868BB416AC]
http://linked.open...v/mistoKonaniAkce	Beijing
http://linked.open...i/riv/mistoVydani	Piscataway
http://linked.open...i/riv/nazevZdroje	General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI (Proceedings IEEE)
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Advanced Microscopy and Spectroscopy Platform for Research and Development in Nano and Microtechnologies - AMISPEC ALISI - Centre of advanced diagnostic methods and technologies APPLICATION LABORATORIES OF ADVANCED MICROTECHNOLOGIES AND NANOTECHNOLOGIES Advanced interferometric systems for measurement in nanotechnology
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Buchta, Zdeněk Lazar, Josef Číp, Ondřej Holá, Miroslava
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2014-08-16 (xsd:date)
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1109/URSIGASS.2014.6929044
http://purl.org/ne...btex#hasPublisher	IEEE
https://schema.org/isbn	978-1-4673-5225-3

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