Vysoce přesná měření vzdáleností pomocí Fabry-Perotova rezonátoru

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F05%3A00022046" target="_blank" >RIV/68081731:_____/05:00022046 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Ultra-Precise Measurement of Distance by Fabry-Perot Resonator

Popis výsledku v původním jazyce

Length measurements in the region of nanometers by help of laser interferometers are influenced by the nonlinearity of their scale, which is usually ten or more nanometers. We developed and experimentally verified a new method, which has the resolution and linearity of the scale in the order of hundredth part of a nanometer. This method uses an optical Fabry-Perot resonator as a measuring element and by its help it is possible to measure small length and to test the nonlinearity of any interferometer with the uncertainty smaller than 0.1 nm The method takes advantage of a direct conversion of the relative changes of the optical path in measuring arm of the Michelson interferometer to relative changes of the resonant optical frequency of the Fabry-Perotresonator. Frequency changes of the resonator resonance frequency have been monitored by a beat-frequency comparison between tunable He-Ne or semiconductor ECL laser and He-Ne-I2 optical frequency standard at 633 nm.

Název v anglickém jazyce

Ultra-Precise Measurement of Distance by Fabry-Perot Resonator

Popis výsledku anglicky

Length measurements in the region of nanometers by help of laser interferometers are influenced by the nonlinearity of their scale, which is usually ten or more nanometers. We developed and experimentally verified a new method, which has the resolution and linearity of the scale in the order of hundredth part of a nanometer. This method uses an optical Fabry-Perot resonator as a measuring element and by its help it is possible to measure small length and to test the nonlinearity of any interferometer with the uncertainty smaller than 0.1 nm The method takes advantage of a direct conversion of the relative changes of the optical path in measuring arm of the Michelson interferometer to relative changes of the resonant optical frequency of the Fabry-Perotresonator. Frequency changes of the resonator resonance frequency have been monitored by a beat-frequency comparison between tunable He-Ne or semiconductor ECL laser and He-Ne-I2 optical frequency standard at 633 nm.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

—

Projekt

<a href="/cs/project/GP102%2F02%2FP122" target="_blank" >GP102/02/P122: Detekční metody pro laserový interferometr s polovodičovým laserem</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název periodika

Physica Scripta

ISSN

0031-8949

e-ISSN

—

Svazek periodika

T118

Číslo periodika v rámci svazku

-

Stát vydavatele periodika

SE - Švédské království

Počet stran výsledku

3

Strana od-do

45-47

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—