title: Optomechanical trampoline resonators.
abstract: We report on the development of optomechanical "trampoline" resonators composed of a tiny SiO(2)/Ta(2)O(5) dielectric mirror on a silicon nitride micro-resonator. We observe optical finesses of up to 4 × 10(4) and mechanical quality factors as high as 9 × 10(5) in relatively massive (~100 ng) and low frequency (10-200 kHz) devices. This results in a photon-phonon coupling efficiency considerably higher than previous Fabry-Perot-type optomechanical systems. These devices are well suited to ultra-sensitive force detection, ground-state optical cooling experiments, and demonstrations of quantum dynamics for such systems.
authors: Department of Physics, University of California, Santa Barbara, California 93106, USA.
authors: Dustin
authors: D
authors: Kleckner
authors: Brian
authors: B
authors: Pepper
authors: Evan
authors: E
authors: Jeffrey
authors: Petro
authors: P
authors: Sonin
authors: Susanna M
authors: SM
authors: Thon
authors: Dirk
authors: D
authors: Bouwmeester
mesh_terms: D004867:Equipment Design; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation*; D055096:Optical Devices; D055095:Optics and Photonics; D017785:Photons; D012031:Refractometry / Q000295:instrumentation*; D014159:Transducers