Levitated Optomechanics with Meta-Atoms

• URL: http://arxiv.org/abs/2211.08235v4
• Date: Fri, 26 May 2023 14:28:26 GMT
• Title: Levitated Optomechanics with Meta-Atoms
• Authors: Sergei Lepeshov, Nadine Meyer, Patrick Maurer, Oriol Romero-Isart and Romain Quidant
• Abstract summary: We introduce additional control in levitated optomechanics by trapping a meta-atom supporting Mie resonances. We show that optical levitation and center-of-mass ground-state cooling of silicon nanoparticles in vacuum is not only experimentally feasible but it offers enhanced performance.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose to introduce additional control in levitated optomechanics by trapping a meta-atom, i.e. a subwavelength and high-permittivity dielectric particle supporting Mie resonances. In particular, we theoretically demonstrate that optical levitation and center-of-mass ground-state cooling of silicon nanoparticles in vacuum is not only experimentally feasible but it offers enhanced performance over widely used silica particles, in terms of both trap frequency and trap depth. Moreover, we show that, by adjusting the detuning of the trapping laser with respect to the particle's resonance, the sign of the polarizability becomes negative, enabling levitation in the minimum of laser intensity e.g. at the nodes of a standing wave. The latter opens the door to trapping nanoparticles in the optical near-field combining red and blue-detuned frequencies, in analogy to two-level atoms, which is of interest for generating strong coupling to photonic nanostructures and short-distance force sensing.

Related papers

• The strongly driven Fermi polaron [49.81410781350196]
  Quasiparticles are emergent excitations of matter that underlie much of our understanding of quantum many-body systems. We take advantage of the clean setting of homogeneous quantum gases and fast radio-frequency control to manipulate Fermi polarons. We measure the decay rate and the quasiparticle residue of the driven polaron from the Rabi oscillations between the two internal states.
  arXiv  Detail & Related papers  (2023-08-10T17:59:51Z)
• Probing the symmetry breaking of a light--matter system by an ancillary qubit [50.591267188664666]
  Hybrid quantum systems in the ultrastrong, and even more in the deep-strong, coupling regimes can exhibit exotic physical phenomena. We experimentally observe the parity symmetry breaking of an ancillary Xmon artificial atom induced by the field of a lumped-element superconducting resonator. This result opens a way to experimentally explore the novel quantum-vacuum effects emerging in the deep-strong coupling regime.
  arXiv  Detail & Related papers  (2022-09-13T06:14:08Z)
• Optical cold damping of neutral nanoparticles near the ground state in an optical lattice [0.0]
  We propose and demonstrate purely optical feedback cooling of neutral nanoparticles in an optical lattice to an occupation number of $0.85pm0.20$. The cooling force is derived from the optical gradients of displaced optical lattices produced with two sidebands on the trapping laser.
  arXiv  Detail & Related papers  (2022-05-02T13:28:42Z)
• Ponderomotive squeezing of light by a levitated nanoparticle in free space [0.0]
  A mechanically compliant element can be set into motion by the interaction with light. This light-driven motion can give rise to ponderomotive correlations in the electromagnetic field. cavities are often employed to enhance these correlations up to the point where they generate quantum squeezing of light.
  arXiv  Detail & Related papers  (2022-02-18T07:57:36Z)
• High Finesse Cavity with Anapole-Assisted Resonant Subwavelength Particle Mirror [0.0]
  We propose a high finesse cavity with one mirror made of a subwavelength resonant particle as a platform to enhance this interaction. High-quality eigenmode solutions are obtained for such a highly non-paraxial cavity with a very high field concentration at the particle. Light-matter interactions at the subwavelength scale can be greatly enhanced due to the small size of the particle and the high finesse of the cavity.
  arXiv  Detail & Related papers  (2021-04-23T03:18:08Z)
• Deterministic single-atom source of quasi-superradiant $N$-photon pulses [62.997667081978825]
  Scheme operates with laser and cavity fields detuned from the atomic transition by much more than the excited-state hyperfine splitting. This enables reduction of the dynamics to that of a simple, cavity-damped Tavis-Cummings model with the collective spin determined by the total angular momentum of the ground hyperfine level.
  arXiv  Detail & Related papers  (2020-12-01T03:55:27Z)
• Position-controlled quantum emitters with reproducible emission wavelength in hexagonal boron nitride [45.39825093917047]
  Single photon emitters (SPEs) in low-dimensional layered materials have recently gained a large interest owing to the auspicious perspectives of integration and extreme miniaturization. Here, we evidence SPEs in high purity synthetic hexagonal boron nitride (hBN) that can be activated by an electron beam at chosen locations. Our findings constitute an essential step towards the realization of top-down integrated devices based on identical quantum emitters in 2D materials.
  arXiv  Detail & Related papers  (2020-11-24T17:20:19Z)
• Directional emission of down-converted photons from a dielectric nano-resonator [55.41644538483948]
  We theoretically describe the generation of photon pairs in the process of spontaneous parametric down-conversion. We reveal that highly directional photon-pair generation can be observed utilising the nonlinear Kerker-type effect.
  arXiv  Detail & Related papers  (2020-11-16T10:30:04Z)
• Optical repumping of resonantly excited quantum emitters in hexagonal boron nitride [52.77024349608834]
  We present an optical co-excitation scheme which uses a weak non-resonant laser to reduce transitions to a dark state and amplify the photoluminescence from quantum emitters in hexagonal boron nitride (hBN) Our results are important for the deployment of atom-like defects in hBN as reliable building blocks for quantum photonic applications.
  arXiv  Detail & Related papers  (2020-09-11T10:15:22Z)
• Stationary Gaussian Entanglement between Levitated Nanoparticles [0.0]
  Coherent scattering of photons is a novel mechanism of optomechanical coupling for optically levitated nanoparticles. We show that it allows efficient deterministic generation of Gaussian entanglement between two particles in separate tweezers.
  arXiv  Detail & Related papers  (2020-06-05T09:55:10Z)
• Dynamic control of Purcell enhanced emission of erbium ions in nanoparticles [0.0]
  We demonstrate the control of the Purcell enhanced emission of a small ensemble of erbium ions doped into nanoparticles. We can tune the cavity on- and out of-resonance by controlling its length with sub-nanometer precision. This allows us to shape in real time the Purcell enhanced emission of the ions and to achieve full control over the emitted photons' waveforms.
  arXiv  Detail & Related papers  (2020-01-23T14:09:55Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.