Interferometry with referencing of wavelength

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F11%3A00368391" target="_blank" >RIV/68081731:_____/11:00368391 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Interferometry with referencing of wavelength
Original language description
In this contribution we present an approach to incremental interferometric measurements of displacements over a limited range where the atmospheric wavelength of the coherent laser source is either directly stabilized to a mechanical reference or is corrected to fit to the reference. The idea comes from the possibility to use a highly stable material for a reference frame, material which can perform thermal expansion coefficients on the level 10-8/K within a large temperature range up to 50K. Over a range of several K which may be the practical range for displacement measurements the coefficient is even smaller. This may outperform the best techniques of correction for the variations of the refractive index of air. The mechanics is always a part of themeasurement setup and represents one of the sources of uncertainty. A link of the refractive to the mechanical reference can practically eliminate another source of uncertainty.
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
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
International Conference on Applications of Optics and Photonics (Proceedings of SPIE Vol. 8001)
ISBN
978-0-8194-8575-5
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
"80010X:1"-"6"
Publisher name
SPIE
Place of publication
Bellingham
Event location
Braga
Event date
May 3, 2011
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000295056000033

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