Solá Ignacio R, González-Vázquez Jesús, de Nalda Rebeca, Bañares Luis
Departamento de Química Física I (Unidad Asociada de I+D+i al CSIC), Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain.
Phys Chem Chem Phys. 2015 May 28;17(20):13183-200. doi: 10.1039/c5cp00627a. Epub 2015 Apr 2.
Strong ultrashort laser pulses have opened new avenues for the manipulation of photochemical processes like photoisomerization or photodissociation. The presence of light intense enough to reshape the potential energy surfaces may steer the dynamics of both electrons and nuclei in new directions. A controlled laser pulse, precisely defined in terms of spectrum, time and intensity, is the essential tool in this type of approach to control chemical dynamics at a microscopic level. In this Perspective we examine the current strategies developed to achieve control of chemical processes with strong laser fields, as well as recent experimental advances that demonstrate that properties like the molecular absorption spectrum, the state lifetimes, the quantum yields and the velocity distributions in photodissociation processes can be controlled by the introduction of carefully designed strong laser fields.
强超短激光脉冲为光化学过程(如光异构化或光解离)的操控开辟了新途径。强度足以重塑势能面的光的存在,可能会将电子和原子核的动力学导向新的方向。在这种微观层面控制化学动力学的方法中,一个在光谱、时间和强度方面精确定义的受控激光脉冲是必不可少的工具。在这篇综述文章中,我们研究了为实现用强激光场控制化学过程而开发的当前策略,以及最近的实验进展,这些进展表明,通过引入精心设计的强激光场,可以控制诸如分子吸收光谱、态寿命、量子产率和光解离过程中的速度分布等性质。