Coherent Control of Strong Field Dynamics.

We present experimental results on coherent control of multi-photon transitions in the strong field limit. A learning algorithm is capable of discovering shaped laser pulses which can compensate for dynamic Stark shifts and greatly outperform an unshaped laser pulse. We provide a comparison between experiments that use a spontaneous emission signal as feedback for the learning algorithm and ones that make use of a stimulated emission signal. Our experimental results are compared with calculations of the strong field dynamics.