6 papers · 1 filter
Wide-bandwidth atomic magnetometry via instantaneous-phase retrieval
Nathanial Wilson, Christopher Perrella, Russell Anderson +2
We develop and demonstrate a new protocol that allows sensing of magnetic fields in an extra-ordinary regime for atomic magnetometry. Until now, the demonstrated bandwidth for atom…
Observation of Dynamic Stark Resonances in Strong-Field Excitation
Dashavir Chetty, Rohan D. Glover, Bruno A. deHarak +12
We investigate AC Stark-shifted resonances in argon with ultrashort near-infrared pulses. Using 30 fs pulses we observe periodic enhancements of the excitation yield in the intensi…
Light-shift spectroscopy of optically trapped atomic ensembles
Ashby P. Hilton, Andre N. Luiten, Philip S. Light
We develop a method for extracting the physical parameters of interest for a dipole trapped cold atomic ensemble. This technique uses the spatially dependent ac-Stark shift of the…
Dual-colour magic-wavelength trap for suppression of light shifts in atoms
Ashby P. Hilton, Christopher Perrella, Andre N. Luiten +1
We present an optical approach to compensating for spatially varying ac-Stark shifts that appear on atomic ensembles subject to strong optical control or trapping fields. The intro…
Laser-based metastable krypton generation
M. A. Dakka, G. Tsiminis, P. S. Light +6
We demonstrate the generation of metastable krypton in the long-lived 1s5 state using laser excitation. The atoms are excited through a two-photon absorption process into the 2p6 s…
High-efficiency cold-atom transport into a waveguide trap
Ashby P. Hilton, Christopher Perrella, Fetah Benabid +3
We have developed and characterized an atom-guiding technique that loads cold rubidium atoms into hollow-core optical fibre, an order-of-magnitude larger than previou…