Doppler cooling a microsphere
arXiv:1004.1443 · doi:10.1103/PhysRevLett.105.073002
Abstract
Doppler cooling the center-of-mass motion of an optically levitated microsphere via the velocity dependent scattering force from narrow whispering gallery mode (WGM) resonances is described. Light that is red detuned from the WGM resonance can be used to damp the center-of-mass motion in a process analogous to the Doppler cooling of atoms. Leakage of photons out of the microsphere when the incident field is near resonant with the narrow WGM resonance acts to damp the motion of the sphere. The scattering force is not limited by saturation, but can be controlled by the incident power. Cooling times on the order of seconds are calculated for a 20 micron diameter silica microsphere trapped within optical tweezers, with a Doppler temperature limit in the microKelvin regime.
5 pages, 3 figures
References in corpus (11)
- Many-Body Physics with Ultracold Gases
- A High Phase-Space-Density Gas of Polar Molecules
- Strong dispersive coupling of a high finesse cavity to a micromechanical membrane
- Cavity Optomechanics
- Resolved Sideband Cooling of a Micromechanical Oscillator
- Cavity optomechanics using an optically levitated nanosphere
- Toward Quantum Superposition of Living Organisms
- Dynamical Backaction of Microwave Fields on a Nanomechanical Oscillator
- Cavity cooling of an optically trapped nanoparticle
- Cavity sideband cooling of a single trapped ion
- Radiation pressure driven vibrational modes in ultra-high-Q silica microspheres
Cited by in corpus (31)
- Cavity Optomechanics
- Models of Wave-function Collapse, Underlying Theories, and Experimental Tests
- Millikelvin cooling of an optically trapped microsphere in vacuum
- Optomechanics with Levitated Particles
- Quantum Superposition of Massive Objects and Collapse Models
- Optically Levitating Dielectrics in the Quantum Regime: Theory and Protocols
- Near-field interferometry of a free-falling nanoparticle from a point-like source
- Gravitational Decoherence
- Optomechanics of Levitated Dielectric Particles
- Robust stationary mechanical squeezing in a kicked quadratic optomechanical system
- Levitated Nanoparticles for Microscopic Thermodynamics - A Review
- Master equation approach to optomechanics with arbitrary dielectrics
- Quantum experiments with microscale particles
- Probing a Gravitational Cat State: Experimental Possibilities
- Entanglement based tomography to probe new macroscopic forces
- Limits on the abundance of millicharged particles bound to matter
- Reservoir engineering of a mechanical resonator: generating a macroscopic superposition state and monitoring its decoherence
- Modelling of optical traps for aerosols
- Coupling a small torsional oscillator to large optical angular momentum
- Crucial tests of macrorealist and semi-classical gravity models with freely falling mesoscopic nanospheres
- Simultaneous cooling of coupled mechanical oscillators using whispering gallery mode resonances
- How cold can you get in space? Quantum Physics at cryogenic temperatures in space
- Optimal quantum parametric feedback cooling
- On the time optimal thermalization of single mode Gaussian states
- Comparing cavity and ordinary laser cooling within the Lamb-Dicke regime
- In-situ tuning of whispering gallery modes of levitated silica microspheres
- Nonclassical states of levitated macroscopic objects beyond the ground state
- Optical Cooling Using the Dipole Force
- Collective-motion-enhanced acceleration sensing via an optically levitated microsphere array
- Synthesis of optical spring potentials in optomechanical systems
- Roto-translational optomechanics