High sensitive method for optical birefringence measurement

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24510%2F15%3A%230001179" target="_blank" >RIV/46747885:24510/15:#0001179 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1117/12.2086877" target="_blank" >http://dx.doi.org/10.1117/12.2086877</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2086877" target="_blank" >10.1117/12.2086877</a>

Result language
angličtina
Original language name
High sensitive method for optical birefringence measurement
Original language description
A sensitive method for optical birefringence measurement is presented. To optimize the signal over the noise ratio, the polarization of the laser beam is modulated exceptionally with a high frequency electro-optical modulator. The specially developed optical apparatus exhibits high sensitivity and accuracy, which were checked by measuring the Cotton-Mouton effect in nitrogen as a function of the pressure. It is able to measure the retardance down to 2x10(-4) rad. This apparatus will be used with the locked optical cavity. The optical cavity will serve as an optical path multiplier for increasing the sensitivity. This proposed set-up will be able to measure the Cotton-Mouton effect in helium, where the birefringence effect is Delta n approximate to 2.4x10(-16).
Czech name
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Czech description
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Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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