A three-dimensional steerable optical tweezer system for ultracold atoms.
@article{Chisholm2018ATS,
title={A three-dimensional steerable optical tweezer system for ultracold atoms.},
author={C S Chisholm and R Thomas and Amita B. Deb and Niels Kj{\ae}rgaard},
journal={The Review of scientific instruments},
year={2018},
volume={89 10},
pages={
103105
}
}We present a three-dimensional steerable optical tweezer system based on two pairs of acousto-optic deflectors. Radio frequency signals used to steer the optical tweezers are generated by direct digital synthesis, and multiple time averaged cross beam dipole traps can be produced through rapid frequency toggling. We produce arrays of ultracold atomic clouds in both horizontal and vertical planes and use this to demonstrate the three-dimensional nature of this optical tweezer system.
11 Citations
Cubic-Phase Metasurface for Three-Dimensional Optical Manipulation
- PhysicsNanomaterials
- 2021
A cubic-phase dielectric metasurface, composed of GaN circular nanopillars, is designed and fabricated to generate a polarization-independent vertically accelerated two-dimensional Airy beam in the visible region, which has great potential to shape light for compact systems in the field of physics and biological applications.
Spatially-selective in situ magnetometry of ultracold atomic clouds
- PhysicsJournal of Physics B: Atomic, Molecular and Optical Physics
- 2019
We demonstrate novel implementations of high-precision optical magnetometers which allow for spatially-selective and spatially-resolved in situ measurements using cold atomic clouds. These are…
Noise-free generation of bright matter-wave solitons
- PhysicsPhysical Review A
- 2018
We show how access to sufficiently flexible trapping potentials could be exploited in the generation of three-dimensional atomic bright matter-wave solitons. Our proposal provides a route towards…
Quantum defect analysis of interacting collisional resonances
- Physics
- 2021
We use a laser-based collider to study the interplay between a magnetic Feshbach resonance and a shape resonance in cold collisions of ultracold Rb atoms. By exerting control over a parameter space…
Deterministic quantum state transfer of atoms in a random magnetic field
- PhysicsThe European Physical Journal D
- 2019
Abstract
We propose a method for transferring atoms to a target quantum state for a multilevel quantum system with sequentially increasing, but otherwise unknown, energy splitting. This is achieved…
Strong zero-field Förster resonances in K-Rb Rydberg systems
- Physics
- 2020
We study resonant dipole-dipole coupling and the associated van der Waals energy shifts in Rydberg excited atomic rubidium and potassium and investigate Forster resonances between interspecies pair…
A digital feedback controller for stabilizing large electric currents to the ppm level for Feshbach resonance studies.
- PhysicsThe Review of scientific instruments
- 2020
This work describes a simple digital proportional-integral-derivative current controller constructed using a field-programmable gate array and off-the-shelf evaluation boards that allows for gain scheduling, enabling optimal control of current sources with non-linear actuators.
Experimental observation of the avoided crossing of two
S
-matrix resonance poles in an ultracold atom collider
- PhysicsPhysical Review Research
- 2021
In quantum mechanics, collisions between two particles are captured by a scattering matrix which describes the transfer from an initial entrance state to an outgoing final state. Analyticity of the…
Low-cost wireless condition monitoring system for an ultracold atom machine
- Computer ScienceInternet Things
- 2021
References
SHOWING 1-10 OF 51 REFERENCES
Steerable optical tweezers for ultracold atom studies.
- PhysicsOptics letters
- 2014
The tweezer system is based on high-efficiency acousto-optic deflectors and offers two-dimensional control over beam position, which opens up the possibility for tracking the transport channel when shuttling atomic clouds along it, forestalling atom spilling.
A Digital Frequency Source for Movement of Ultracold Atoms by Acousto-Optic Deflection
- Physics
- 2014
This thesis documents the development of a frequency source based on a field programmable gate array (FPGA) and a direct digital synthesiser (DDS). The source was used to drive the two inputs of a…
A versatile apparatus for two-dimensional atomtronic quantum simulation.
- PhysicsThe Review of scientific instruments
- 2017
A novel optical setup for generating high-resolution customizable potentials to address ultracold bosonic atoms in two dimensions and a two-dimensional planar trap for atoms, providing near-ballistic in-planar movement are reported.
Holographic optical trapping.
- PhysicsApplied optics
- 2006
Offering nanometer-scale spatial resolution and real-time reconfigurability, holographic optical traps provide unsurpassed access to the microscopic world and have found applications in fundamental research, manufacturing, and materials processing.
Dynamic manipulation of Bose-Einstein condensates with a spatial light modulator
- Physics
- 2006
We manipulate a Bose-Einstein condensate using the optical trap created by the diffraction of a laser beam on a fast ferroelectric liquid crystal spatial light modulator. The modulator acts as a…
Precise shaping of laser light by an acousto-optic deflector.
- PhysicsOptics express
- 2013
The versatility of this laser beam shaping method is demonstrated by generating potentials with large flat-topped regions as well as intensity patterns that compensate for residual external potentials to create a uniform background to which the trapping potential of experimental interest can be added.
Control and manipulation of cold atoms in optical tweezers
- Physics
- 2012
Neutral atoms trapped by laser light are among the most promising candidates for storing and processing information in a quantum computer or simulator. The application certainly calls for a scalable…
In situ single-atom array synthesis using dynamic holographic optical tweezers
- PhysicsNature communications
- 2016
It is hoped this proof-of-principle demonstration of high-fidelity atom-array preparations will be useful for deterministic loading of N single atoms, especially on arbitrary lattice locations, and also for real-time qubit shuttling in high-dimensional quantum computing architectures.
Laser based accelerator for ultracold atoms.
- PhysicsOptics letters
- 2012
The optical collider has been characterized using 87Rb atoms in the |F=2, m(F)=2] state, but the scheme is not restricted to atoms in any particular magnetic substates and can readily be extended to other atomic species as well.
Spatial interference from well-separated split condensates
- Physics
- 2010
We use magnetic levitation and a variable-separation dual optical plug to obtain clear spatial interference between two condensates axially separated by up to 0.25 mm-the largest separation observed…






