Near-field coupling of a levitated nanoparticle to a photonic crystal cavity

  title={Near-field coupling of a levitated nanoparticle to a photonic crystal cavity},
  author={Lorenzo Magrini and Richard A. Norte and Ralf Riedinger and Igor Marinkovi{\'c} and David Grass and Uro{\vs} Deli{\'c} and Simon Gr{\"o}blacher and Sungkun Hong and Markus Aspelmeyer},
Quantum control of levitated dielectric particles is an emerging subject in quantum optomechanics. A major challenge is to efficiently measure and manipulate the particle’s motion at the Heisenberg uncertainty limit. Here we present a nanophotonic interface suited to address this problem. By optically trapping a 150 nm silica particle and placing it in the near field of a photonic crystal cavity, we achieve tunable single-photon optomechanical coupling of up to g0/2π=9  kHz, three orders of… 

Figures from this paper

Controlling mode orientations and frequencies in levitated cavity optomechanics

Cavity optomechanics offers quantum cooling, control and measurement of small mechanical os-cillators. However the optomechanical backactions disturb the oscillator motions, shifting their frequencies

Mechanical Squeezing via Unstable Dynamics in a Microcavity.

We theoretically show that strong mechanical quantum squeezing in a linear optomechanical system can be rapidly generated through the dynamical instability reached in the far red-detuned and

Levitodynamics: Levitation and control of microscopic objects in vacuum

An overview of the status, challenges, and prospects of levitodynamics, the mutidisciplinary research area that focuses on the understanding and control of optical trapping of microparticles and nanoparticles in vacuum, is provided, with the goal of eventually using such levitated particles as ultrasensitive probes for sensing applications.

Spin-Mechanics with Nitrogen-Vacancy Centers and Trapped Particles

The focus is on the theoretical background close to the current experiments, as well as on the experimental limits, that, once overcome, will enable these systems to unleash their full potential.

Hybrid Integration of Silicon Photonic Devices on Lithium Niobate for Optomechanical Wavelength Conversion

A novel integration method is presented, based on previous pick-and-place ideas, that can combine independently fabricated device components of different materials into a single device with state-of-the-art wavelength conversion characteristics.

Coherent scattering 2D cooling in levitated cavity optomechanics

The strong light-matter optomechanical coupling offered by Coherent Scattering (CS) set-ups have allowed the experimental realisation of quantum ground state cavity cooling of the axial motion of a

Injection locking of a levitated optomechanical oscillator for precision force sensing

Siamak Dadras,1, 2 Robert M. Pettit,3 Danika R. Luntz-Martin,2, 4 Kewen Xiao,5 M. Bhattacharya,2, 5 and A. Nick Vamivakas1, 2, 4, ∗ The Institute of Optics, University of Rochester, Rochester, NY

Optical transport of sub-micron lipid vesicles along a nanofiber.

It is found that nanofiber diameters below a nominal diffraction limit give optimal results, paving the way for integrated optical transport and analysis of liposome-like bio-particles, as well as their coupling to nano-optical resonators.

Optomechanics with a levitated nanoparticle

  • R. Quidant
  • Physics
    2020 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)
  • 2020
We discuss the use of a levitated mesoscopic particle in vacuum as a optomechanical system with unique features and performance.

Enhancement of rotational vacuum friction by surface photon tunneling

Abstract When a neutral sphere is rotating near a surface in vacuum, it will experience a frictional torque due to quantum and thermal electromagnetic fluctuations. Such vacuum friction has attracted



Optical levitation and feedback cooling of a nanoparticle at subwavelength distances from a membrane

We optically trap a nanoparticle in a laser beam strongly focused on a dielectric membrane in vacuum. By investigating the motion of the trapped particle, we map the position-dependent optical

Tuning of nanocavity optomechanical coupling using a near-field fiber probe: supplementary material

This document provides supplementary information to "Near-field tuning of optomechanical coupling in a split-beam nanocavity," The relative contribution of

Mapping nanoscale light fields

Recent developments in probe-based near-field microscopy are reviewed, including techniques for determining the phase, amplitude and separate components of the electric and magnetic field. The

Millikelvin cooling of an optically trapped microsphere in vacuum

Microscale resonators cooled so that their vibrational motion approaches the quantum limit enable the study of quantum effects in macroscopic systems. An approach that could probe the interface

Measurement-based quantum control of mechanical motion

The displacement of a mechanical resonator is measured to within 35% of the Heisenberg uncertainty limit, enabling feedback cooling to the quantum ground state, nine decibels below the quantum-backaction limit.

Quantum-limited measurement and information in mesoscopic detectors

We formulate general conditions necessary for a linear-response detector to reach the quantum limit of measurement efficiency, where the measurement-induced dephasing rate takes its minimum possible

Ultrahigh-Q photonic crystal cavities in silicon rich nitride.

Ultrahigh-Q Photonic Crystal cavities were realized in a suspended Silicon Rich Nitride (SiNx) platform for applications at telecom wavelengths and the experimental spectra indicate that the non-linear losses are negligible in this material platform.

Photonic crystal nanocavity with a Q factor exceeding eleven million.

Repeated thermal oxidation and an oxide removal process applied after the removal of the buried oxide layer underneath the nanocavities realized an experimental Q factor greater than eleven million, which is the highest experimental Q ever recorded.

Single-Molecule Protein Folding Experiments Using High-Precision Optical Tweezers.

General strategies and detailed protocols to study folding of proteins and protein complexes using optical tweezers, including sample preparation, DNA-protein conjugation and methods of data analysis to extract folding energies and rates from the single-molecule measurements are provided.

Nanoparticle detection in an open-access silicon microcavity

We report on the detection of free nanoparticles in a micromachined, open-access Fabry-Perot microcavity. With a mirror separation of $130\,\mu$m, a radius of curvature of $1.3\,$mm, and a beam waist