Bichromatic Imaging of Single Molecules in an Optical Tweezer Array

Abstract

We report on a novel bichromatic fluorescent imaging scheme for background-free detection of single CaF molecules trapped in an optical tweezer array. By collecting fluorescence on one optical transition while using another for laser-cooling, we achieve an imaging fidelity of 97.7(2)% and a non-destructive detection fidelity of 95.5(6)%. We characterize loss mechanisms of our scheme, many of which are generically relevant to the fluorescent detection of trapped molecules, including two-photon decay and admixtures of higher excited states that are induced by the trapping light.

References in corpus (50)

• Probing many-body dynamics on a 51-atom quantum simulator
• A High Phase-Space-Density Gas of Polar Molecules
• Cold and Ultracold Molecules: Science, Technology, and Applications
• Realizing quantum Ising models in tunable two-dimensional arrays of single Rydberg atoms
• Parallel implementation of high-fidelity multi-qubit gates with neutral atoms
• Experimental realization of a symmetry protected topological phase of interacting bosons with Rydberg atoms
• Cold molecules: Progress in Quantum Engineering of Chemistry and Quantum Matter
• Single-atom imaging of fermions in a quantum-gas microscope
• A Quantum Gas Microscope for Fermionic Atoms
• High-Fidelity Entanglement and Detection of Alkaline-Earth Rydberg Atoms
• The Buffer Gas Beam: An Intense, Cold, and Slow Source for Atoms and Molecules
• Molecules cooled below the Doppler limit
• An Optical Tweezer Array of Ultracold Molecules
• Rydberg mediated entanglement in a two-dimensional neutral atom qubit array
• Sisyphus Laser Cooling of a Polyatomic Molecule
• Radio Frequency Magneto-Optical Trapping of CaF with High Density
• Laser Cooling of Optically Trapped Molecules
• Alkaline earth atoms in optical tweezers
• Microscopic control and detection of ultracold strontium in optical-tweezer arrays
• Dipolar Exchange Quantum Logic Gate with Polar Molecules
• Magneto-Optical Trapping and Sub-Doppler Cooling of a Polyatomic Molecule
• Seconds-scale coherence in a tweezer-array optical clock
• Direct Laser Cooling of a Symmetric Top Molecule
• Narrow-line cooling and imaging of Ytterbium atoms in an optical tweezer array
• Ultracold molecules for quantum simulation: rotational coherences in CaF and RbCs
• An ytterbium quantum gas microscope with narrow-line laser cooling
• $\Lambda$-Enhanced Imaging of Molecules in an Optical Trap
• Universal gate operations on nuclear spin qubits in an optical tweezer array of ${}^{171}$Yb atoms
• Magnetic trapping and coherent control of laser-cooled molecules
• Observation of Collisions between Two Ultracold Ground-State CaF Molecules
• Sub-Doppler Cooling and Compressed Trapping of YO Molecules at $\mu$K Temperatures
• A Scalable Quantum Computing Platform Using Symmetric-Top Molecules
• Rotational Coherence Times of Polar Molecules in Optical Tweezers
• High accuracy theoretical investigations of CaF, SrF, and BaF and implications for laser-cooling
• Molecular Asymmetry and Optical Cycling: Laser Cooling Asymmetric Top Molecules
• An intense, cold, velocity-controlled molecular beam by frequency-chirped laser slowing
• Forming a single molecule by magnetoassociation in an optical tweezer
• Molecular assembly of ground state cooled single atoms
• Lifetime of the A(v'=0) state and Franck-Condon factor of the A-X(0-0) transition of CaF measured by the saturation of laser-induced fluorescence
• High Phase-Space Density of Laser-Cooled Molecules in an Optical Lattice
• Determination of CaOH and CaOCH${}_3$ vibrational branching ratios for direct laser cooling and trapping
• Quantum control of molecules for fundamental physics
• Polarization Enhanced Deep Optical Dipole Trapping of $\Lambda$-cooled Polar Molecules
• Functionalizing Aromatic Compounds with Optical Cycling Centers
• Eliminating light shifts in single-atom optical traps
• Establishing a nearly closed cycling transition in a polyatomic molecule
• Molecular Laser-Cooling in a Dynamically Tunable Repulsive Optical Trap
• Preparation of ${}^{87}$Rb and ${}^{133}$Cs in the motional ground state of a single optical tweezer
• Laser spectroscopy of aromatic molecules with optical cycling centers: strontium (I) phenoxides
• Synthesizing Optical Spectra using Computer-Generated Holography Techniques

Cited by in corpus (9)

• On-Demand Entanglement of Molecules in a Reconfigurable Optical Tweezer Array
• Enhanced quantum control of individual ultracold molecules using optical tweezer arrays
• Raman Sideband Cooling of Molecules in an Optical Tweezer Array
• A Blue-Detuned Magneto-Optical Trap of CaF Molecules
• Optical Tweezer Arrays of Erbium Atoms
• Quantum simulation of the central spin model with a Rydberg atom and polar molecules in optical tweezers
• Ultracold Interactions between Ions and Polar Molecules
• Single-atom imaging of ${}^{173}$Yb in optical tweezers loaded by a five-beam magneto-optical trap
• Parity-Doublet Coherence Times in Optically Trapped Polyatomic Molecules