Stanovení indexu lomu vzduchu Michelsonovým interferometrem

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The Measurement of Air Refractive Index Using Optical Interferometry

Popis výsledku v původním jazyce

Interferometric measurements are widely used for very low distances observation. Tens of nanometers are the obvious order of values determined by Michelson interferometer. Our Michelson interferometer was equipped with digital camera to pan the interference fringes in the imaging plane. The counting of fringes was performed by computer imaging. A small optical chamber was designed for changing the optical path in one of the light beams by changing the air pressure. The chamber was evacuated by hand vacuum pump and the shifted interference fringes were counted. The described simple technique showed the relative measurement uncertainty of about 5 % in the deviation of air refractive index from the vacuum refractive index. Moreover, using of interferencefringes counting taken from the digital camera produced benefits in the lowering of possible human error. Recently the principle was used for creating a new illustrative laboratory measurement as a part of applied wave optics.

Název v anglickém jazyce

The Measurement of Air Refractive Index Using Optical Interferometry

Popis výsledku anglicky

Interferometric measurements are widely used for very low distances observation. Tens of nanometers are the obvious order of values determined by Michelson interferometer. Our Michelson interferometer was equipped with digital camera to pan the interference fringes in the imaging plane. The counting of fringes was performed by computer imaging. A small optical chamber was designed for changing the optical path in one of the light beams by changing the air pressure. The chamber was evacuated by hand vacuum pump and the shifted interference fringes were counted. The described simple technique showed the relative measurement uncertainty of about 5 % in the deviation of air refractive index from the vacuum refractive index. Moreover, using of interferencefringes counting taken from the digital camera produced benefits in the lowering of possible human error. Recently the principle was used for creating a new illustrative laboratory measurement as a part of applied wave optics.

Druh

D - Stať ve sborníku

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

New Trends in Physics 2007 Proceedings of the Conference

ISBN

978-80-7355-078-3

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

340-343

Název nakladatele

Ing. Zdeněk Novotný, CSc.

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

15. 11. 2007

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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