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强激光与物质的相互作用已成为物理研究中一个极为活跃的领域.在激光场强接近原子单位场强时,会出现许多非线性的物理现象.近几年来,分子与强激光场的相互作用研究也极为活跃,研究的主要目的在于探索激光强度在控制化学反应动力学方面的作用以及利用强激光场离解分子来研究分子激发态波包结构,与原子情形相似,强激光场中的分子行为也表现出一系列的非线性效应,如阈上离解、“库仑爆炸”和分子稳定化等.
Interaction between strong laser and matter has become an extremely active field in physics research. Many non-linear physical phenomena occur when laser field strength approaches the field strength of atomic units. In recent years, the interaction between molecules and strong laser field The research is also very active. The main purpose of the study is to explore the role of laser intensity in controlling chemical reaction kinetics and the use of strong laser field dissociation molecules to study the molecular excited-state wave packet structure. Similar to the atomic case, the molecular behavior in a strong laser field Also showed a series of nonlinear effects, such as the threshold of dissociation, “Coulomb explosion” and molecular stabilization.