Highly uniform holographic microtrap arrays for single atom trapping using a feedback optimization of in-trap fluorescence measurements

Rb atom trapping, we can reduce the variance of trap depths from 20.8% to 1.7% for 4 × 4 square arrays and less than 4% for various arrays with up to 62 sites. The detection error of individual single atoms is also reduced from 1.7% to 0.0054% on average.