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Title: A micropillar for cavity optomechanics

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.
Authors:
; ; ; ; ;  [1] ;  [2] ; ; ;  [3] ; ; ;  [4]
  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)
Publication Date:
OSTI Identifier:
22390722
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1633; Journal Issue: 1; Conference: 11. International Conference on Quantum Communication, Measurement and Computation, Vienna (Austria), 30 Jul - 3 Aug 2012; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CAVITY RESONATORS; COOLING; DILUTION; GROUND STATES; INTERFEROMETRY; MIRRORS; NOISE; QUALITY FACTOR; QUANTUM MECHANICS; QUARTZ; RADIATION PRESSURE