Photoelectron angular distributions from H2 and D2

Southworth, S. H.; Brewer, William D.; Truesdale, C. M.; Kobrin, P. H.; Lindle, Dennis W.; Shirley, D. A.

doi:10.1016/0368-2048(82)87004-7

Cited by 24 publications

(6 citation statements)

References 47 publications

(30 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In figure 8 we compare the calculated asymmetry parameter β with the experimental results (Marr et al 1980, Southworth et al 1982. The agreement is reasonably good outside the resonance region.…”

Section: Photoionization Cross Sections Of Hmentioning

confidence: 53%

Representation of the electronic continuum of withB-spline basis

Sánchez¹,

Martı́n²

1997

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

View full text Add to dashboard Cite

We present an L 2 integrable method with B-spline basis to describe the electronic continuum of two-electron diatomic molecules. The method is applied to obtain (i) energy positions and widths of the lowest 1 + u doubly-excited states of the H 2 molecule, and (ii) photoionization cross sections of H 2 in the fixed-nuclei approximation. Our results are compared with existing theoretical and experimental works. We show the existence of avoided crossings between two series of doubly-excited states, (2pσ u nsσ g ) and (2pσ u ndσ g ), converging to the 2pσ u ionization threshold of H 2 .

show abstract

Section: Photoionization Cross Sections Of Hmentioning

confidence: 53%

Representation of the electronic continuum of withB-spline basis

Sánchez¹,

Martı́n²

1997

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

View full text Add to dashboard Cite

show abstract

“…3. Fixed-nuclei (equilibrium) and vibrationally averaged effective dipole asymmetry parameter β 2 for one-photon ionization of H 2 compared with experiments of Marr et al [47], Southworth et al [48], Parr et al [49], and Zimmermann et al [50] and an earlier stationary R-matrix calculation by Tennyson et al [51] with a different molecular model. et al [44].…”

Section: B Two-photon Ionizationmentioning

confidence: 91%

“…In Fig. 2 the RMT cross sections shown were obtained for very long pulses (greater than 100 cycles); for the ATZ basis set we tested the use of Marr et al [47] Southworth et al [48] Tennyson et al [51] Parr et al [49] Zimmermann et al [50] FIG. 3.…”

Section: B Two-photon Ionizationmentioning

confidence: 99%

Perturbative and nonperturbative photoionization of H2 and H2O using the molecular R<

et al. 2020

View full text Add to dashboard Cite

The ab initio R-matrix with time method has recently been extended to allow simulation of fully nonperturbative multielectron processes in molecules driven by ultrashort arbitrarily polarized strong laser fields. Here we demonstrate the accuracy and capabilities of the current implementation of the method for two targets: We study single-photon and multiphoton ionization of H 2 and one-photon and strong-field ionization of H 2 O and compare the results to available experimental and theoretical data as well as our own time-independent R-matrix calculations. We obtain a highly accurate description of total and state-to-state single-photon ionization of H 2 O and, using a simplified coupled-channel model, we show that state coupling is essential to obtain qualitatively correct results and that its importance as a function of laser intensity changes. We find that electron correlation plays a more important role at low intensities (up to approximately 50 TW/cm 2).

show abstract

“…The early interest in the photoelectron angular distribution was focused on the polarization averaged case [91]. The interest in the molecular frame photoelectron distribution (MFPAD) increased, because of new experimental capabilities [44,92].…”

Section: Hydrogen Moleculementioning

confidence: 99%

Theoretical description of the ionization processes with a discrete basis set representation of the electronic continuum

Szczygieł,

Lesiuk,

Moszynski

2019

Preprint

View full text Add to dashboard Cite

In this work we present a new method of approximating the continuum wavefunctions with a discrete basis set. This method aims to be at least compatible with other well known methods of the electronic structure theory to describe processes in the electronic continuum. As an example of the application we present the results of the calculations of the photoionization cross sections for the hydrogen atom and hydrogen molecule and for the helium atom. We also obtained the photoelectron angular distribution for the hydrogen molecule. The agreement of our results with the experimental data is very good in the energy range from the ionization threshold up to photon energies of about 60 eV.

show abstract

Photoelectron angular distributions from H2 and D2

Cited by 24 publications

References 47 publications

Representation of the electronic continuum of withB-spline basis

Representation of the electronic continuum of withB-spline basis

Perturbative and nonperturbative photoionization of H2 and H2O using the molecular R<

Theoretical description of the ionization processes with a discrete basis set representation of the electronic continuum

Contact Info

Product

Resources

About