On the major mode of multiphoton multiple ionisation

Codling, K.; Frasinksi, L J; Hatherly, P. A.; Barr, J.R.M.

doi:10.1088/0022-3700/20/16/003

Cited by 48 publications

(14 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…32 Multicharged ions are known to be produced by multiphoton ionization, exposing atoms or molecules to a strong laser field. [33][34][35][36][37][38][39] In the case of diatomic molecules, both atoms become charged, being followed by the Coulomb explosion and by the production of multicharged atomic ions. [35][36][37][38] The kinetic energy of these ions was found to increase with the ion charge making, for example, ϳ20 eV for N 3ϩ formed from multicharged N 2 .…”

Section: Introductionmentioning

confidence: 99%

Energetics and dynamics of Coulomb explosion of highly charged clusters

Schek¹,

Jortner²

1997

The Journal of Chemical Physics

120

View full text Add to dashboard Cite

Ultrafast femtosecond Coulomb explosion of charged homogeneous (Xe n) and heterogeneous doped (HIAr n) small and medium sized clusters (nϽ60) is studied resting on the picture of a vertical high-order multiphoton ionization from the ground state nuclear configuration. The final average atomic velocity ͑simulated at constant charge͒ increases with increasing the cluster size, and at constant cluster size increases linearly with the ion charge, in accord with the predictions of an analytical model. The linear dependence of the reciprocal explosion time on the charge is also in accord with the analytical prediction. From the energetics of the Coulomb explosion ͑reflecting a probable initial atomic distribution of the cluster size for small clusters͒, a nonvertical multiphoton ionization during the Coulomb explosion cannot be inferred.

show abstract

Section: Introductionmentioning

confidence: 99%

Energetics and dynamics of Coulomb explosion of highly charged clusters

Schek¹,

Jortner²

1997

The Journal of Chemical Physics

120

View full text Add to dashboard Cite

show abstract

“…The remaining positive charges repel each other and the kinetic energy release (KER) of the ions is a measure of the distance between the positive charges before they started moving, providing information for reconstruction of the molecular geometry. Development of short laser pulses, which could be focused to produce fields capable of fragmenting molecules, provided a path for inducing Coulomb explosion with an advantage over foil experiments [12][13][14], of permitting synchronization in pump-probe experiments. This enabled Coulomb explosions to monitor wavepacket evolution [11,15,16].…”

mentioning

confidence: 99%

Transient X-Ray Fragmentation: Probing a Prototypical Photoinduced Ring Opening

Petrović¹,

Siano²,

White³

et al. 2012

Phys. Rev. Lett.

View full text Add to dashboard Cite

“…However, in all of these studies the atomic ions had comparatively low kinetic energies, typically in the range from a few to up to 20 eV. Kinetic energies of a similar magnitude also have been reported from experiments on the photoionization of individual HI molecules, 8 where charged fragments of iodine up to I 5+ could be observed, and in studies of other diatomic molecules such as CO, O 2 , and H 2 [9][10][11][12] which showed the formation of multicharged species with comparable kinetic energy release values. Though the interactions of intense laser pulses with single atoms or molecules and solid targets 13,14 have been the subject of intense studies over the past decade, only recently have field matter interactions of femtosecond laser pulses with clusters become a subject of interest.…”

Section: Introductionmentioning

confidence: 59%

Molecular Dynamics Simulation of Coulomb Explosion Processes

Poth

Castleman

1998

J. Phys. Chem. A

View full text Add to dashboard Cite

Irradiation of clusters with intense femtosecond laser pulses has been found to oftentimes produce highly charged ion fragments resulting from Coulomb explosion of the cluster under investigation. When a timeof-flight mass spectrometer is used for detection, double peaks can be observed for these multicharged species due to the different arrival times of backward and forward ejected ions. Kinetic energy release values can be calculated from these peaks splittings and also can be directly measured from cutoff potentials using a reflectron as an energy analyzer. The experimental values determined with both of these methods are surprisingly large, typically on the order of several hundred electronvolts. The purpose of the work reported herein is to model the temporal evolution of a cluster system after the ionization event, using MD simulations on a level of pure electrostatic interactions between the formed ion cores. The results give insight into how composition, size, structure, and charge distribution in the initially ionized cluster influence the kinetic energy distribution of the ejected ions.

show abstract

On the major mode of multiphoton multiple ionisation

Cited by 48 publications

References 11 publications

Energetics and dynamics of Coulomb explosion of highly charged clusters

Energetics and dynamics of Coulomb explosion of highly charged clusters

Transient X-Ray Fragmentation: Probing a Prototypical Photoinduced Ring Opening

Molecular Dynamics Simulation of Coulomb Explosion Processes

Contact Info

Product

Resources

About