Angular momentum distribution in Rydberg states excited by a strong laser pulse

Author
Abstract
We study the excitation to Rydberg states in the interaction of the hydrogen atom with a short, strong laser pulse. Utilizing solutions of the time-dependent Schrödinger equation we find that the parity of the populated angular momentum states agrees with the selection rules for multiphoton resonant absorption at low intensities, if the pulse length is not too short. In contrast, the parity effect cannot be observed for ultrashort pulses as well as for long pulses at high intensities. We further identify signatures of the population in the excited states via the line emissions from the populated <em>np</em> states after the end of the pulse exhibiting the parity effect.
Year of Publication
2018
Journal
Physical Review A
Volume
98
Date Published
2018-10
ISSN Number
2469-9926
URL
https://journals.aps.org/pra/abstract/10.1103/PhysRevA.98.043434
DOI
10.1103/PhysRevA.98.043434
JILA PI
Journal Article