A micropillar for cavity optomechanics

Journal Article · Thu Dec 04 04:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4903097· OSTI ID:22390722

Kuhn, Aurélien; Neuhaus, Leonhard; Deléglise, Samuel; Briant, Tristan; Cohadon, Pierre-François; Heidmann, Antoine ^[1]; Van Brackel, Emmanuel ^[2]; Chartier, Claude; Ducloux, Olivier; Le Traon, Olivier ^[3]; Michel, Christophe; Pinard, Laurent; Flaminio, Raffaele ^[4]

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1. Laboratoire Kastler Brossel, UPMC-ENS-CNRS, Paris (France)
2. Département de Physique, ENS, Paris (France)
3. Département Mesures Physiques, ONERA, Châtillon (France)
4. Laboratoire des Matériaux Avancés, IN2P3-CNRS, Lyon (France)

Demonstrating the quantum ground state of a macroscopic mechanical object is a major experimental challenge in physics, at the origin of the rapid emergence of cavity optomechanics. We have developed a new generation of optomechanical devices, based on a microgram quartz micropillar with a very high mechanical quality factor. The structure is used as end mirror in a Fabry-Perot cavity with a high optical finesse, leading to ultra-sensitive interferometric measurement of the resonator displacement. We expect to reach the ground state of this optomechanical resonator by combining cryogenic cooling in a dilution fridge at 30 mK and radiation-pressure cooling. We have already carried out a quantum-limited measurement of the micropillar thermal noise at low temperature.

• OSTI ID: 22390722
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1633; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CAVITY RESONATORS
COOLING
DILUTION
GROUND STATES
INTERFEROMETRY
MIRRORS
NOISE
QUALITY FACTOR
QUANTUM MECHANICS
QUARTZ
RADIATION PRESSURE