2015/05/31 by M. L. Juan, Mathieu L. Juan, Gabriel Molina‐Terriza +5 · 18 citations
Engineering · Physics and Astronomy · #Cavity quantum electrodynamics #Condensed matter physics #Dipole #Field (mathematics) #Force Microscopy Techniques and Applications #Laser #Levitation #Mechanical and Optical Resonators #Nanophotonics #Open quantum system #Optical cavity #Optics #Optoelectronics #Optomechanics #Photon #Photonic and Optical Devices #Physics #Polarizability #Quantum #Quantum mechanics #Quantum well #Quantum-confined Stark effect #Qubit #Resonator #cond-mat.mes-hall #quant-ph
paper · pdf · doi:10.1103/physreva.94.023841
published in Physical Review A 94(2) (American Physical Society) · 11 pages (including appendix), 6 figures
openalex publication_date 2016/08/24 · arxiv created 2016/08/26 · arxiv updated 2016/08/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We theoretically show that the dipole force of an ensemble of quantum emitters embedded in a dielectric nanosphere can be exploited to achieve near-field optical levitation. The key ingredient is that the polarizability from the ensemble of embedded quantum emitters can be larger than the bulk polarizability of the sphere, thereby enabling the use of repulsive optical potentials and consequently the levitation using optical near fields. In levitated cavity quantum optomechanics, this could be used to boost the single-photon coupling by combining larger polarizability to mass ratio, larger field gradients, and smaller cavity volumes while remaining in the resolved sideband regime and at room temperature. A case study is done with a nanodiamond containing a high density of silicon-vacancy color centers that is optically levitated in the evanescent field of a tapered nanofiber and coupled to a high-finesse microsphere cavity.