Sub-Nanometer Scale Temperature Distance Change Monitor by Optical Frequency Comb Referenced to the Atomic Clock

0368253 - ÚPT 2012 RIV DE eng C - Conference Paper (international conference)
Šmíd, Radek - Číp, Ondřej - Čížek, Martin - Buchta, Zdeněk - Lazar, Josef
Sub-Nanometer Scale Temperature Distance Change Monitor by Optical Frequency Comb Referenced to the Atomic Clock.
Proceedings of the 20th IMEKO TC2 Symposium on Photonics in Measurement. Aachen: Shaker Verlag, 2011, s. 130-133. ISBN 978-3-8440-0058-0.
[IMEKO TC2 Symposium on Photonics in Measurement /20./. Linz (AT), 16.05.2011-18.05.2011]
R&D Projects: GA MŠMT ED0017/01/01; GA MŠMT 2C06012; GA MPO 2A-1TP1/127; GA MPO FT-TA3/133; GA MPO 2A-3TP1/113; GA ČR GA102/09/1276; GA ČR GA102/07/1179; GA ČR GAP102/10/1813
Institutional research plan: CEZ:AV0Z20650511
Keywords : length measurement * interferometry * nanoscale changes * optical frequency comb
Subject RIV: BH - Optics, Masers, Lasers

In this work we present a method of monitor of small distance changes in the sub-nanometer order. The method uses a Fabry-Perot cavity of Zerodur spacer. It’s length is monitored by a selected mode of the femtosecond frequency comb is locked to certain mode of the optical cavity. Measured cavity is placed into temperature stabilized vacuum chamber. Temperature changes affects the length of the cavity, hence the change in repetition frequency of the femtosecond comb. The first results shows the resolution of the method in the order of 0.1 nm.
Permanent Link: http://hdl.handle.net/11104/0202648