Temperature stabilization of semiconductor lasers for direct measurement of index of refraction of air.

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F03%3A12030080" target="_blank" >RIV/68081731:_____/03:12030080 - 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
Temperature stabilization of semiconductor lasers for direct measurement of index of refraction of air.
Original language description
Laser interferometers are even more precise distance measurement devices with resolution in nanometer or sub-nanometer region. If interferometric measurements are carried out under atmospheric conditions (usual situation in industry), they measure optical path length of an unknown distance instead of its true geometrical value. It is caused by an index of refraction of air that introduces a multiplicative constant to measured results. If we want to obtain correct values, the knowledge of the index of refraction is necessary. Generally, the index of refraction can be measured by two ways: indirectly or directly. The first of them is based on parametric analysis of atmospheric properties as: relative humidity, pressure, temperature, concentration of CO.sub.2./sub. etc. Values of these parameters are processed then by Edlen formulas with 10.sup.-7./sup. order [1]. The direct methods are more precise then Edlen formulas (more than 10.sup.-7./sup.) but their practical implementation is more
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
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the International Conference and Competition Student EEICT 2003.
ISBN
80-214-2401-X
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
189-193
Publisher name
Brno University of Technology
Place of publication
Brno
Event location
Brno [CZ]
Event date
Apr 24, 2003
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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