Ⅰ. INTRODUCTION In recent years laser multiphoton ionization spectroscopy is developed rapidly. The main reason is that it has many substantial advantages, such as high sensitivity, low background noise and easy dete...Ⅰ. INTRODUCTION In recent years laser multiphoton ionization spectroscopy is developed rapidly. The main reason is that it has many substantial advantages, such as high sensitivity, low background noise and easy detection. In fact, it is a very effective method for investigating the higher excited states of atoms and molecules as well as for展开更多
I. INTRODUCTION In recent years, the investigation of autoionization processes attracts much attention as MPI （multiphoton Ionization）spectroscopy has developed rapidly. However, much work has been done on atomic sy...I. INTRODUCTION In recent years, the investigation of autoionization processes attracts much attention as MPI （multiphoton Ionization）spectroscopy has developed rapidly. However, much work has been done on atomic system. In comparison, the molecules have richer vibronic structure which makes the research more complicated. Great attention has been given to the MPI study of CS<sub>2</sub> and CS<sub>2</sub><sup>+</sup>. One of the reasons is that the CS<sub>2</sub> mole-展开更多
Ⅰ. INTRODUCTIONIn ordinary degenerate four-wave mixing experiments, parametric amplification is generated, i.e., when an object wave with a certain intensity is incident on a nonlinear medium, backward reflective wav...Ⅰ. INTRODUCTIONIn ordinary degenerate four-wave mixing experiments, parametric amplification is generated, i.e., when an object wave with a certain intensity is incident on a nonlinear medium, backward reflective wave of the very object wave would be展开更多
文摘Ⅰ. INTRODUCTION In recent years laser multiphoton ionization spectroscopy is developed rapidly. The main reason is that it has many substantial advantages, such as high sensitivity, low background noise and easy detection. In fact, it is a very effective method for investigating the higher excited states of atoms and molecules as well as for
文摘I. INTRODUCTION In recent years, the investigation of autoionization processes attracts much attention as MPI （multiphoton Ionization）spectroscopy has developed rapidly. However, much work has been done on atomic system. In comparison, the molecules have richer vibronic structure which makes the research more complicated. Great attention has been given to the MPI study of CS<sub>2</sub> and CS<sub>2</sub><sup>+</sup>. One of the reasons is that the CS<sub>2</sub> mole-
文摘Ⅰ. INTRODUCTIONIn ordinary degenerate four-wave mixing experiments, parametric amplification is generated, i.e., when an object wave with a certain intensity is incident on a nonlinear medium, backward reflective wave of the very object wave would be
