Displacement Interferometry in Passive Fabry-Perot Cavity

0375382 - ÚPT 2012 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Lazar, Josef - Číp, Ondřej - Oulehla, Jindřich - Pokorný, Pavel - Fejfar, Antonín - Stuchlík, Jiří
Displacement Interferometry in Passive Fabry-Perot Cavity.
NANOCON 2011. 3rd International Conference. Ostrava: Tanger spol. s r. o, 2011, s. 688-694. ISBN 978-80-87294-27-7.
[NANOCON 2011. International Conference /3./. Brno (CZ), 21.09.2011-23.09.2011]
Grant CEP: GA ČR GA102/09/1276; GA ČR GPP102/11/P820; GA AV ČR KAN400100701; GA MŠMT(CZ) LC06007
Výzkumný záměr: CEZ:AV0Z20650511; CEZ:AV0Z10100521
Klíčová slova: refractometry * nanopositioning * interferometry * nanometrology
Kód oboru RIV: JA - Elektronika a optoelektronika, elektrotechnika

We present techniques oriented to improvement of precision in 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. This may represent a reduction of uncertainty linking the laser wavelength not to indirectly evaluated refractive index but to the setup mechanics which cannot be completely eliminated. Here we suggest an approach where the traditional interferometers are replaced by a passive Fabry-Perot cavity with position sensing using an intracavity transparent photodetector.
Trvalý link: http://hdl.handle.net/11104/0208053