Multiphoton ionization of the hydrogen atom by a circularly polarized electromagnetic field |
| |
Authors: | O B Prepelitsa |
| |
Institution: | (1) Institute of Applied Physics, Moldavian Academy of Sciences, 277028 Kishinev, Republic of Moldova |
| |
Abstract: | This paper examines the multiphoton ionization of the ground state of the hydrogen atom in the field of a circularly polarized
intense electromagnetic wave. To describe the states of photoelectrons, quasiclassical wave functions are introduced that
partially allow for the effect of an intense electromagnetic wave and that of the Coulomb potential. Expressions are derived
for the angular and energy distributions of photoelectrons with energies much lower than the ionization potential of an unperturbed
atom. It is found that, due to allowance for the Coulomb potential in the wave function of the final electron states, the
transition probability near the ionization threshold tends to a finite value. In addition, the well-known selection rules
for multiphoton transitions in a circularly polarized electromagnetic field are derived in a natural way. Finally, the results
are compared with those obtained in the Keldysh-Faisal-Reiss approximation.
Zh. éksp. Teor. Fiz. 116, 807–820 (September 1999) |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|