Optomechanics of Levitated Dielectric Particles

Abstract

We review recent works on optomechanics of optically trapped microspheres and nanoparticles in vacuum, which provide an ideal system for studying macroscopic quantum mechanics and ultrasensitive force detection. An optically trapped particle in vacuum has an ultrahigh mechanical quality factor as it is well-isolated from the thermal environment. Its oscillation frequency can be tuned in real time by changing the power of the trapping laser. Furthermore, an optically trapped particle in vacuum may rotate freely, a unique property that does not exist in clamped mechanical oscillators. In this review, we will introduce the current status of optical trapping of dielectric particles in air and vacuum, Brownian motion of an optically trapped particle at room temperature, Feedback cooling and cavity cooling of the Brownian motion. We will also discuss about using optically trapped dielectric particles for studying macroscopic quantum mechanics and ultrasensitive force detection. Applications range from creating macroscopic Schr{ö}dinger's cat state, testing objective collapse models of quantum wavefunctions, measuring Casimir force, searching short-range non-Newtonian gravity, to detecting gravitational waves.

review article, 16 pages

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Cited by in corpus (85)

• Direct Measurement of Photon Recoil from a Levitated Nanoparticle
• Zeptonewton force sensing with nanospheres in an optical lattice
• Optically Levitated Nanodumbbell Torsion Balance and GHz Nanomechanical Rotor
• GHz Rotation of an Optically Trapped Nanoparticle in Vacuum
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• Gravitational Decoherence
• Search for Millicharged Particles Using Optically Levitated Microspheres
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• A classical channel model for gravitational decoherence
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• Optical levitation of 10 nanogram spheres with nano-$g$ acceleration sensitivity
• Search for Screened Interactions Associated with Dark Energy Below the 100 $\mu \mathrm{m}$ Length Scale
• Optimal Feedback Cooling of a Charged Levitated Nanoparticle with Adaptive Control
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• Optically driven ultra-stable nanomechanical rotor
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• Accurate mass measurement of a levitated nanomechanical resonator for precision force sensing
• Cavity-assisted manipulation of freely rotating silicon nanorods in high vacuum
• Optimal Position Detection of a Dipolar Scatterer in a Focused Field
• Probing macroscopic realism via Ramsey correlations measurements
• Detecting Casimir torque with an optically levitated nanorod
• Testing spontaneous wave-function collapse models on classical mechanical oscillators
• 5D cooling and nonlinear dynamics of an optically levitated nanodumbbell
• Proposal for gravitational direct detection of dark matter
• Ultralight dark matter detection with mechanical quantum sensors
• Hybrid opto-mechanical systems with nitrogen-vacancy centers
• Quantum Model of Cooling and Force Sensing With an Optically Trapped Nanoparticle
• Cooling nanorotors by elliptic coherent scattering
• Ultrasensitive Inertial and Force Sensors with Diamagnetically Levitated Magnets
• Optical trapping and control of nanoparticles inside evacuated hollow core photonic crystal fibers
• Three-dimensional force-field microscopy with optically levitated microspheres
• Optomechanics based on angular momentum exchange between light and matter
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• High-precision gravimeter based on a nano-mechanical resonator hybrid with an electron spin
• Bringing quantum mechanics to life: from Schrödinger's cat to Schrödinger's microbe
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• Semi-classical gravity phenomenology under the causal-conditional quantum measurement prescription
• The nanosphere phonon laser
• Quantum Brownian Motion of a particle from Casimir-Polder Interactions
• Quantum signatures in quadratic optomechanics
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