Abstract

Tunneling photoionization by a bichromatic field consisting of the coherent superposition of the fundamental laser field frequency and its second harmonic is studied theoretically within the framework of the adiabatic Landau–Dykhne approach applied to the process of negative-ion photodetachment. Analytical expressions for the probability of photodetachment were derived at two fixed specified values of relative phase shift, Φ=0 and Φ=π/2, between the harmonics of the incident bichromatic field. The derived expressions are thoroughly analyzed for two possible limiting cases of tunneling and multiphoton ionization and are demonstrated to be different from the respective expressions for the monochromatic case because of the presence of an effective field strength, which is a function that strongly depends on the parameters of the incident bichromatic field.

© 2002 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Photodetachment of F- by a few-cycle circularly polarized laser field

Saverio Bivona, Riccardo Burlon, and Claudio Leone
Opt. Express 14(26) 12576-12583 (2006)

Photodetachment-threshold shifts in two-frequency radiation fields

L. A. Bloomfield
J. Opt. Soc. Am. B 7(4) 472-480 (1990)

Tunneling ionization of atoms and atomic ions in an intense laser field with a nonhomogeneous space–time distribution

M. V. Ammosov, P. A. Golovinsky, I. Yu. Kiyan, V. P. Krainov, and V. M. Ristic
J. Opt. Soc. Am. B 9(8) 1225-1230 (1992)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (37)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription