Interferometry with suppression of fast fluctuations of the refractive index of air for nanometrology

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F13%3A00398400" target="_blank" >RIV/68081731:_____/13:00398400 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1117/12.2035553" target="_blank" >http://dx.doi.org/10.1117/12.2035553</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2035553" target="_blank" >10.1117/12.2035553</a>

Result language
angličtina
Original language name
Interferometry with suppression of fast fluctuations of the refractive index of air for nanometrology
Original language description
We present an interferometric technique based on differential interferometry setup for measurement in the subnanometer scale in atmospheric conditions. The motivation for development of this ultraprecise technique is coming from the field of nanometrology. The key limiting factor in any optical measurement are fluctuations of the refractive index of air representing the greatest source of uncertainty. Our proposal is based on the concept of combining overdetermined interferometric setup where a reference wavelength is derived from a mechanical reference for compensation of fast fluctuations and traditional indirect evaluation of the refractive index compensating on the other hand the long-term drift of the mechanical reference caused by thermal expansion. 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 sam
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Sixth International Symposium on Precision Mechanical Measurements (Proceedings of SPIE 8916)
ISBN
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ISSN
0277-786X
e-ISSN
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Number of pages
6
Pages from-to
"89161J: 1"-"6"
Publisher name
SPIE
Place of publication
Bellingham
Event location
Guiyang
Event date
Oct 10, 2013
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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