State-dependent fluorescence of neutral atoms in optical potentials
arXiv:1710.07964 · doi:10.1103/PhysRevA.97.023410
Abstract
Recently we have demonstrated scalable, non-destructive, and high-fidelity detection of the internal state of Rb neutral atoms in optical dipole traps using state-dependent fluorescence imaging [M. Martinez-Dorantes et al., PRL, 2017]. In this article we provide experimental procedures and interpretations to overcome the detrimental effects of heating-induced trap losses and state leakage. We present models for the dynamics of optically trapped atoms during state-dependent fluorescence imaging and verify our results by comparing Monte Carlo simulations with experimental data. Our systematic study of dipole force fluctuations heating in optical traps during near-resonant illumination shows that off-resonant light is preferable for state detection in tightly confining optical potentials.
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