Laser-Induced Low Energy Electron Diffraction in Aligned Molecules

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• 作者：Suk Kyoung Lee ; Yun Fei Lin ; Lu Yan ; Wen Li
• 刊名：The Journal of Physical Chemistry A
• 出版年：2012
• 出版时间：March 1, 2012
• 年：2012
• 卷：116
• 期：8
• 页码：1950-1955
• 全文大小：393K
• 年卷期：v.116,no.8(March 1, 2012)
• ISSN：1520-5215

文摘

We measured the photoelectron spectra and angular distributions of partially aligned N₂, O₂, and CO₂ in the rescattering plateau of above threshold ionization (ATI). The measured ATI electrons have relatively low collision energies (<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鈥搃on scattering dynamics.