论文部分内容阅读
自激光出现以来，用激光激发原子和分子，进而使之电离成了研究原子和分子结构及其相互作用过程的重要方法和工具．本文用染料激光激发钾蒸汽，观察钾原子的电离谱，发现了钾原子的三种电离机制：４Ｓ—６Ｓ双光子共振三光子电离、４Ｓ—４Ｄ双光子共振三光子电离和能量积聚诱?
Since the advent of lasers, the use of lasers to excite atoms and molecules and thereby ionize them has become an important method and tool for studying atomic and molecular structures and their interactions. In this paper, we use dye laser to excite potassium vapor and observe the ionization spectrum of potassium atom. We found three ionization mechanisms of potassium atom: 4S-6S two-photon resonance three-photon ionization, 4S-4D two photon resonance three-photon ionization and energy accumulation.