Physical Review A
We report sensitive detection of parametric resonances in a high-density sample of ultracold 87Rb atoms confined to a far-off-resonance optical dipole trap. Fluorescence imaging of the expanded ultracold atom cloud after a period of parametric excitation shows significant modification of the atomic spatial distribution and has high sensitivity compared with traditional measurements of parametrically driven trap loss. Using this approach, a significant shift of the parametric resonance frequency is observed and attributed to the anharmonic shape of the dipole trap potential. 2009 The American Physical Society.
Original Publication Citation
Balik, S., Win, A. L., & Havey, M. D. (2009). Imaging-based parametric resonance in an optical dipole-atom trap. Physical Review A, 80(2), 023404. doi:10.1103/PhysRevA.80.023404
Balik, S.; Win, A. L.; and Havey, M. D., "Imaging-Based Parametric Resonance in an Optical Dipole-Atom Trap" (2009). Physics Faculty Publications. 89.