Optimal control simulation with nonlinear interactions: A case study of molecular alignment/orientation as a prerequisite for attoscience

In the present talk, I will briefly summarize the basic ideas and procedures of optimal control simulation. Then I will explain how to extend the simulation to include the nonlinear interactions between molecules and laser fields through a case study of molecular alignment/orientation. This control has attracted considerable interests for the past few decades as it enables molecular processes to be induced in a molecular-fixed frame, which can be a prerequisite for atto-science. From the numerical results, optimal control mechanisms for aligning/orienting molecules through rotational Raman transitions are discussed.