<i>Atoms in Intense Laser Fields</i>

Gavrila, M.; Mittleman, Marvin H.

doi:10.1063/1.2808941

Cited by 159 publications

(221 citation statements)

References 0 publications

Supporting

Mentioning

211

Contrasting

Unclassified

Order By: Relevance

“…The inner electron experiences an altered potential due to the motion of the strongly driven outer electron, thereby leading to its ionization ('internal rescattering') [21]. The ionization of an inner electron can then leave the molecule in an excited state, in this case the ionic state (1,3). This is in contrast to the case of atoms where the outer electron is ionized and then returns to the core due to the laser field leading to the ionization of the inner electron [5].…”

Section: Discussionmentioning

confidence: 99%

“…These interactions are intricate and can involve multi-electron effects. To this end, atomic ionization has been studied [1] and electrons tunnelling out of the total field (Coulomb potential plus the laser electric field) to the continuum dominate the interaction. The ionization rates in atoms are typically described using the Ammosov-Delone-Krainov (ADK) tunnelling model [2].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A framework for understanding molecular ionization in strong laser fields

Menon

Nibarger

Gibson

2002

J. Phys. B: At. Mol. Opt. Phys.

View full text Add to dashboard Cite

The aim of this paper is to examine the role of excited states and multi-electron interactions in molecular ionization by strong laser fields. We present new data on the ionization and dissociation of iodine molecules that reveal important aspects of the strong field-molecule interaction in the short pulse regime. Our data, along with previous studies, is inconsistent with the simplest and commonly accepted model of molecular ionization in a strong laser field and this has led us to examine closely the individual ionization steps. We have found that a molecule can ionize into several distinct configurations predominantly through multi-electron interactions and the abundance of such configurations is dependent on internuclear separation. The ionization appears to be dominated by pairs of states with gerade and ungerade symmetry, as they have a large dipole coupling and the transition is near resonant with the strong laser field. In a oneelectron molecule, this pair consists of the ground and first excited state whereas in a two-electron molecule this corresponds to the lowest lying pair of ionic states. In this paper, we propose a framework for organizing the numerous ionization pathways based on the electronic configuration of the initial charge state.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A framework for understanding molecular ionization in strong laser fields

Menon

Nibarger

Gibson

2002

J. Phys. B: At. Mol. Opt. Phys.

View full text Add to dashboard Cite

show abstract

“…(19)] into the TDSE and applying high-frequency Floquet theory, Gavrila et al [10,[53][54][55] showed that the n = 0 component in Eq. (20) plays an increasingly important role in the dynamics at higher values of α 0 .…”

Section: B the Role Of Electronic Correlationmentioning

confidence: 99%

Multiphoton ionization and stabilization of helium in superintense xuv fields

et al. 2011

View full text Add to dashboard Cite

Multiphoton ionization of helium is investigated in the superintense field regime, with particular emphasis on the role of the electron-electron interaction in the ionization and stabilization dynamics. To accomplish this, we solve ab initio the time-dependent Schrödinger equation with the full electron-electron interaction included. By comparing the ionization yields obtained from the full calculations with the corresponding results of an independent-electron model, we come to the somewhat counterintuitive conclusion that the single-particle picture breaks down at superstrong field strengths. We explain this finding from the perspective of the so-called Kramers-Henneberger frame, the reference frame of a free (classical) electron moving in the field. The breakdown is tied to the fact that shake-up and shake-off processes cannot be properly accounted for in commonly used independent-electron models. In addition, we see evidence of a change from the multiphoton to the shake-off ionization regime in the energy distributions of the electrons. From the angular distribution, it is apparent that the correlation is an important factor even in this regime.

show abstract

“…[12][13][14] The application of strong pulses to atoms has a long history. [15][16][17][18][19][20][21][22][23][24][25] Here we are interested in non-ionizing effects, which require the use of moderately-strong pulses, typically within tens of TW/cm 2 . Thomas George and Andre Bandrauk developed a very useful "chemical" picture of light-induced events.…”

Section: Introductionmentioning

confidence: 99%

Molecular events in the light of strong fields: A light‐induced potential scenario

Chang

Solá

Shin

2016

Int J of Quantum Chemistry

View full text Add to dashboard Cite

A new perspective on how to manipulate molecules by means of very strong laser pulses is emerging with insights from the so-called light-induced potentials, which are the adiabatic potential energy surfaces of molecules severely distorted by the effect of the strong field. Different effects appear depending on how the laser frequency is tuned, to a certain electronic transition, creating light-induced avoided crossings, or very off-resonant, generating Stark shifts. In the former case it is possible to induce dramatic changes in the geometry and redistribution of charges in the molecule while the lasers are acting and to fully control photodissociation reactions as well as other photochemical processes. Several theoretical proposals taken from the work of the authors are reviewed and analyzed showing the unique features that the strong-laser chemistry opens to control the transient properties and the dynamics of molecules.

show abstract

Atoms in Intense Laser Fields

Cited by 159 publications

References 0 publications

A framework for understanding molecular ionization in strong laser fields

A framework for understanding molecular ionization in strong laser fields

Multiphoton ionization and stabilization of helium in superintense xuv fields

Molecular events in the light of strong fields: A light‐induced potential scenario

Contact Info

Product

Resources

About