Cross Sections of Direct Multiphoton Ionization of Atoms

Ammosov, M. V.; Delone, N. B.; Ivanov, Misha; Бондар, І. І.; Masalov, A. V.

doi:10.1016/s1049-250x(08)60138-x

Cited by 24 publications

(15 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several of significant reviews are already devoted to studying of QED processes in the field of a plane monochromatic wave [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. The review of Nikishov and Ritus [4] is to be mentioned as one of the earliest works, in which first order processes in the field of a plane electromagnetic wave are studied generally.…”

mentioning

confidence: 99%

Quantum electrodynamics resonances in a pulsed laser field

et al. 2012

View full text Add to dashboard Cite

This review contains theoretical study of resonant quantum electrodynamics processes in a pulsed laser field. The approximation is examined when the pulse width is considerably greater than the character istic time of wave oscillations. The lepton's interaction with the Coulomb potential of a nucleus and each other is considered in the Born approximation. It is demonstrated that the resonant differential cross section of a process in a pulsed light fields may considerably exceed the corresponding cross section in an absence of a laser field. Results obtained may be experimentally verified by the scientific facilities at the SLAC National Accelerator Laboratory and FAIR (Facility for Antiproton and Ion Research, Darmstadt, Germany) project.

show abstract

mentioning

confidence: 99%

Quantum electrodynamics resonances in a pulsed laser field

et al. 2012

View full text Add to dashboard Cite

show abstract

“…Our estimates of the probability of the nonresonance process of the three-photon ionization of these atoms, performed using the characteristic data on the ionization cross sections of the Ba atom [17], show that the ionization of these atoms is saturated even before the field strength in the laser pulse reaches its maximum. It is well known that the probability of resonance multiphoton ionization of atoms considerably exceeds the probability of nonresonance ionization.…”

Section: Formation Of Singly Charged Ionsmentioning

confidence: 89%

Peculiarity of formation of doubly charged ions upon multiphoton ionization of barium atoms by linearly and circularly polarized radiation

Суран

Бондар

2007

SPIE Proceedings

View full text Add to dashboard Cite

The process of formation of doubly charged ions upon multiphoton ionization of barium atoms by linearly and circularly polarized radiation of dye lasers is studied in the frequency range from 16 600 to 17 900 cm -1 . A large number of resonance maxima in the yield of Ba + and Ba 2+ ions were observed upon tuning the radiation frequency. It is unambiguously proved that most resonance maxima in the yield of Ba 2+ ions are associated with the resonance transitions in the spectrum of Ba + ions. This fact confirms the cascade mechanism of formation of Ba 2+ ions in the frequency range of localization of these maxima. But the number of the resonant maxima in Ba 2+ ions yield do not identified by transitions both in spectra of Ba atom and Ba + ion. This fact indicates on realization of the noncascade mechanism of Ba 2+ ions formation in the frequency range of these maxima.

show abstract

“…Why 0 I is replaced by L I in Eqs. (27)- (29)? Due to a complexity of the theoretical task including several connected linear and nonlinear effects we made an approximation that our pump intensity does not change along the nonlinear interaction length.…”

Section: The Intensity ( )mentioning

confidence: 99%

“…In accordance with this approximation we replaced the input intensity 0 I with the pump intensity L I in Eqs. (27)- (29). This approximation is based on the following consideration.…”

Section: The Intensity ( )mentioning

confidence: 99%

Stimulated Thermal Scattering Induced by Two-Photon Absorption and Experimental Observation of the Genuine Stimulated Brillouin Scattering in the Near-Ultraviolet Region

Карпов¹

2015

AJOP

View full text Add to dashboard Cite

Part of the experimental measurements of the frequency shift and the phase-conjugation (PC) fidelity gained from previous studies of stimulated scattering (SS) of nanosecond (5~10 ns) near-ultraviolet (UV) (193~351 nm λ =) laser pulses in liquids (hexane, heptane, and others) are found to disagree with the theory of SS, which takes into account only the linear (single-photon) light absorption. To resolve the inconsistency, SS of XeCl excimer laser radiation (308 nm λ =) with the duration of 8 ns in liquid hexane is investigated experimentally. A theoretical analysis of the results obtained revealed three new nonlinear optical phenomena induced by the heating due to two-photon absorption: stimulated thermal scattering (two-photon STS-2), phase mismatch for stimulated Brillouin scattering (SBS), and phase self-modulation. Experimental SS spectrum contains two new lines-a previously unknown two-photon STS-2 line and a genuine SBS line newly discovered in the near-UV region.

show abstract

Cross Sections of Direct Multiphoton Ionization of Atoms

Cited by 24 publications

References 49 publications

Quantum electrodynamics resonances in a pulsed laser field

Quantum electrodynamics resonances in a pulsed laser field

Peculiarity of formation of doubly charged ions upon multiphoton ionization of barium atoms by linearly and circularly polarized radiation

Stimulated Thermal Scattering Induced by Two-Photon Absorption and Experimental Observation of the Genuine Stimulated Brillouin Scattering in the Near-Ultraviolet Region

Contact Info

Product

Resources

About