Title :
A micro-resonator for fundamental physics experiments and its possible interest for time and frequency applications
Author :
Le Traon, Olivier ; Bahriz, M. ; Ducloux, O. ; Masson, S. ; Janiaud, D. ; Kuhn, A. ; Briant, T. ; Cohadon, P. ; Heidmann, A. ; Michel, Cotsaftis ; Pinard, L. ; Flaminio, R.R.
Author_Institution :
Phys. Dept., ONERA, Châtillon, France
Abstract :
A dedicated micro-resonator in a length-extension mode (LEM) has been developing for fundamental physics experiments, aiming to detect the quantum ground state of a resonator. The experiment is based on a high frequency, high quality factor and low mass micro-resonator, implemented in a high finesse Fabry-Perot cavity at cryogenic temperature. Very interesting preliminary measurements have been obtained on a 3.9 MHz, 25 μg resonator, given a 1.95 million quality factor, at room temperature and under a 5 10-2 mbar vacuum. By its planar configuration compatible with collective etching process, this resonator should also find interesting applications in the field of ultra stable oscillator (USO) and future quartz-MEMS USO.
Keywords :
Q-factor; cryogenics; micromechanical resonators; Kuhn high finesse Fabry-Perot cavity; LEM; collective etching process; cryogenic temperature; frequency 3.9 MHz; frequency application; fundamental physic experiments; length-extension mode; low mass microresonator; quality factor; quantum ground state; quartz-MEMS USO; temperature 293 K to 298 K; time application; ultrastable oscillator; Cavity resonators; Chemicals; Etching; Optical resonators; Q factor; Temperature; Temperature measurement;
Conference_Titel :
Frequency Control and the European Frequency and Time Forum (FCS), 2011 Joint Conference of the IEEE International
Conference_Location :
San Fransisco, CA
Print_ISBN :
978-1-61284-111-3
DOI :
10.1109/FCS.2011.5977866
