Institut für Theoretische Physik and Centre for Quantum Engineering and Space-Time Research (QUEST), Leibniz Universität Hannover, Appelstraße 2, 30167 Hannover, Germany.
Phys Rev Lett. 2015 Mar 13;114(10):103004. doi: 10.1103/PhysRevLett.114.103004.
Strong-field ionization of aligned diatomic and polyatomic molecules such as O2, N2, C2H4, and others in circularly polarized laser fields is investigated theoretically. By calculating the emission-angle-resolved lateral width of the momentum distribution perpendicular to the polarization plane, we show that nodal planes in molecular orbitals are directly imprinted on the angular dependence of the width. We demonstrate that orbital symmetries can be distinguished with the information obtained by observing the lateral width in addition to the angular distributions.
本文理论研究了圆偏振激光场中 O2、N2、C2H4 等双原子和多原子分子的强场离化。通过计算垂直于偏振面的动量分布的出射角分辨侧向宽度，我们表明分子轨道中的节点平面直接印刻在宽度的角依赖性上。我们证明，除了角分布之外，通过观察侧向宽度还可以获得轨道对称性的信息，从而对其进行区分。
