Reduced volume and reflection for bright optical tweezers with radial Laguerre-Gauss beams

Abstract

Spatially structured light has opened a wide range of opportunities for enhanced imaging as well as optical manipulation and particle confinement. Here, we show that phase-coherent illumination with superpositions of radial Laguerre-Gauss (LG) beams provides improved localization for bright optical tweezer traps, with narrowed radial and axial intensity distributions. Further, the Gouy phase shifts for sums of tightly focused radial LG fields can be exploited for novel phase-contrast strategies at the wavelength scale. One example developed here is the suppression of interference fringes from reflection near nano-dielectric surfaces, with the promise of improved cold-atom delivery and manipulation.

References in corpus (17)

• Nanophotonic quantum phase switch with a single atom
• Demonstration of a state-insensitive, compensated nanofiber trap
• Subwavelength vacuum lattices and atom-atom interactions in photonic crystals
• Coherence and Raman sideband cooling of a single atom in an optical tweezer
• Atom-atom interactions around the band edge of a photonic crystal waveguide
• Analysis of dephasing mechanisms in a standing wave dipole trap
• Three-dimensional trapping of individual Rydberg atoms in ponderomotive bottle beam traps
• Atom trapping in an interferometrically generated bottle beam trap
• Nanowire photonic crystal waveguides for single-atom trapping and strong light-matter interactions
• Two-Dimensional Photonic Crystals for Engineering Atom-Light Interactions
• Trapping single atoms on a nanophotonic circuit with configurable tweezer lattices
• Extending dark optical trapping geometries
• Clocked Atom Delivery to a Photonic Crystal Waveguide
• The integration of photonic crystal waveguides with atom arrays in optical tweezers
• Heating in Nanophotonic Traps for Cold Atoms
• Tighter spots of light with superposed orbital angular momentum beams
• An advanced apparatus for the integration of nanophotonics and cold atoms

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• Nanotrappy: An open-source versatile package for cold-atom trapping close to nanostructures
• Engineering analog quantum chemistry Hamiltonians using cold atoms in optical lattices
• Asymmetric comb waveguide for strong interactions between atoms and light
• Microsphere kinematics from the polarization of tightly focused nonseparable light
• Light-induced, fictitious magnetic trapping of cold alkali atoms using an optical tweezers-nanofiber hybrid platform