中国物理B ›› 2008, Vol. 17 ›› Issue (12): 4523-4528.doi: 10.1088/1674-1056/17/12/032
• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇 下一篇
周兆妍, 袁建民
Zhou Zhao-Yan (周兆妍), Yuan Jian-Min (袁建民)
摘要: The photon emission spectrum of the hydrogen atoms in an intense high-frequency laser pulse is simulated by using one-dimensional soft Coulomb potential. Regular fine structures appear on the two sides of both the odd and even multiples of photon energy of the laser field besides the ordinary odd harmonic peaks. It is proved that the splits of the fine structures are responsible for hyper-Raman lines and the energy spacing between the odd harmonic lines is equal to the difference in energy between the eigenstates with the same parity of the time averaged Krameters-Henneberger (KH) potential. By analysing the features of the fine structures, we also verify that the so-called even order harmonics under the stabilization condition are indeed hyper-Raman lines caused by the transitions between the dressed atomic states with different values of parity.
中图分类号: (Photoionization of atoms and ions)