Cooperative coupling of ultracold atoms and surface plasmons

Abstract

Cooperative coupling between optical emitters and light fields is one of the outstanding goals in quantum technology. It is both fundamentally interesting for the extraordinary radiation properties of the participating emitters and has many potential applications in photonics. While this goal has been achieved using high-finesse optical cavities, cavity-free approaches that are broadband and easy to build have attracted much attention recently. Here we demonstrate cooperative coupling of ultracold atoms with surface plasmons propagating on a plane gold surface. While the atoms are moving towards the surface they are excited by an external laser pulse. Excited surface plasmons are detected via leakage radiation into the substrate of the gold layer. A maximum Purcell factor of ${\eta }_{\mathrm{P}}=4.9$ is reached at an optimum distance of $z=250\mathrm{nm}$ from the surface. The coupling leads to the observation of a Fano-like resonance in the spectrum.

9 pages, 4 figures

References in corpus (13)

• Strong coupling between surface plasmon polaritons and emitters
• Quantum Plasmonics
• On-demand semiconductor single-photon source with near-unity indistinguishability
• Atom-Light Interactions in Photonic Crystals
• Strong coupling of single emitters to surface plasmons
• Controlled coupling of a single nitrogen-vacancy center to a silver nanowire
• Theory of the strong coupling between quantum emitters and propagating surface plasmons
• Self-organization of atoms along a nanophotonic waveguide
• Nanoplasmonic Lattices for Ultracold atoms
• A "Single-Photon" Transistor in Circuit Quantum Electrodynamics
• Superradiance, subradiance, and suppressed superradiance of dipoles near a metal interface
• Nanoplasmonic planar traps - a tool for engineering p-wave interactions
• Electro-Optical Nanotraps for Neutral Atoms

Cited by in corpus (17)

• Fifteen Years of Cold Matter on the Atom Chip: Promise, Realizations, and Prospects
• Directional spontaneous emission and lateral Casimir-Polder force on an atom close to a nanofiber
• Collectively enhanced chiral photon emission from an atomic array near a nanofiber
• Tailoring optical metamaterials to tune the atom-surface Casimir-Polder interaction
• Atom-surface physics: A review
• Modified dipole-dipole interaction and dissipation in an atomic ensemble near surfaces
• Measurement of the atom-surface van der Waals interaction by transmission spectroscopy in a wedged nano-cell
• Fano resonances and fluorescence enhancement of a dipole emitter near a plasmonic nanoshell
• Non-additivity of optical and Casimir-Polder potentials
• Plasmonic surface traps with arbitrary shape for cold atoms
• Controlling photon bunching and antibunching of two quantum emitters near a core-shell sphere
• Probing decoherence in plasmonic waveguides in the quantum regime
• Doubly-dressed states for near-field trapping and subwavelength lattice structuration
• Bloch Surface Wave-atom Coupling in Periodic Photonic Structure
• Surface-plasmon based dispersive detection and spectroscopy of ultracold atoms
• Focusing Atom Laser Beams
• Design, Fabrication and Characterization of nanoplasmonic lattice for trapping of ultracold atoms