Raman Imaging of Atoms Inside a High-bandwidth Cavity
arXiv:2202.05369 · doi:10.1103/PhysRevA.105.043321
Abstract
High-bandwidth, fiber-based optical cavities are a promising building block for future quantum networks. They are used to resonantly couple stationary qubits such as single or multiple atoms with photons routing quantum information into a fiber network at high rates. In high-bandwidth cavities, standard fluorescence imaging on the atom-cavity resonance line for controlling atom positions is impaired since the Purcell effect strongly suppresses all-directional fluorescence. Here, we restore imaging of Rb atoms strongly coupled to such a fiber Fabry-Pérot cavity by detecting the repumper fluorescence which is generated by continuous and three-dimensional Raman sideband cooling. We have carried out a detailed spectroscopic investigation of the repumper-induced differential light shifts affecting the Raman resonance, dependent on intensity and detuning. Our analysis identifies a compromise regime between imaging signal-to-noise ratio and survival rate, where physical insight into the role of dipole-force fluctuations in the heating dynamics of trapped atoms is gained.
References in corpus (35)
- The Quantum Internet
- Long-distance quantum communication with atomic ensembles and linear optics
- Quantum state transfer and entanglement distribution among distant nodes in a quantum network
- Cavity-based quantum networks with single atoms and optical photons
- Cold atoms in cavity-generated dynamical optical potentials
- An Elementary Quantum Network of Single Atoms in Optical Cavities
- Strong atom-field coupling for Bose-Einstein condensates in an optical cavity on a chip
- Quantum Simulators: Architectures and Opportunities
- Fiber Fabry-Perot cavity with high finesse
- A Quantum Gas Microscope for Fermionic Atoms
- Development of Quantum InterConnects for Next-Generation Information Technologies
- Dissipative preparation of entanglement in optical cavities
- Site-resolved Imaging of Fermionic Lithium-6 in an Optical Lattice
- Photon storage in Lambda-type optically dense atomic media. I. Cavity model
- Microscopic Observation of Pauli Blocking in Degenerate Fermionic Lattice Gases
- Interference-filter-stabilized external-cavity diode lasers
- Cooling to the Ground State of Axial Motion for One Atom Strongly Coupled to an Optical Cavity
- How to Trap Photons? Storing Single-Photon Quantum States in Collective Atomic Excitations
- Highly Efficient Source for Indistinguishable Photons of Controlled Shape
- An optical conveyor belt for single neutral atoms
- Single atom detection in ultracold quantum gases: a review of current progress
- Achievements and Perspectives of Optical Fiber Fabry-Perot Cavities
- A Quantum Repeater Node Demonstrating Unconditionally Secure Key Distribution
- Deterministic Shaping and Reshaping of Single-Photon Temporal Wave Functions
- High Finesse Fiber Fabry-Perot Cavities: Stabilization and Mode Matching Analysis
- Strong Purcell effect on a neutral atom trapped in an open fiber cavity
- Super-resolution microscopy of single atoms in optical lattices
- State-insensitive trapping of Rb atoms: linearly versus circularly polarized lights
- Nondestructive imaging of an ultracold lattice gas
- Raman cooling imaging: Detecting single atoms near their ground state of motion
- State-dependent fluorescence of neutral atoms in optical potentials
- Non-adiabatic Storage of Short Light Pulses in an Atom-Cavity System
- Carrier-free Raman manipulation of trapped neutral atoms
- Ground-State Cooling of a Single Atom in a High-Bandwidth Cavity
- Increased Dimensionality of Raman Cooling in a Slightly Nonorthogonal Optical Lattice