Laser-Induced Low Energy Electron Diffraction in Aligned Molecules

作者：Lee Suk Kyoung; Lin Yun Fei; Yan Lu; Li Wen^*

来源：Journal of Physical Chemistry A, 2012, 116(8): 1950-1955.

DOI：10.1021/jp210798c

We measured the photoelectron spectra and angular distributions of partially aligned N-2, O-2 and CO2 in the rescattering plateau of above threshold ionization (ATI). The measured ATI electrons have relatively low collision energies (%26lt;15 eV). The photoelectron angular distributions (PAD) show clearly species and energy dependence. A simple two-center interference model was not able to consistently retrieve structural properties. We conclude that due to the interplay between the electrons and rescattering potential, the molecular structural information is obscured and cannot be extracted conveniently. However, the sensitivity of the PAD to the scattering potential in laser-induced electron diffraction promises a practical tool for studying electron-ion scattering dynamics.

• 出版日期2012-3-1