Lai, X;
Yu, S;
Huang, Y;
Hua, L;
Gong, C;
Quan, W;
Faria, CFDM;
(2017)
Near-threshold photoelectron holography beyond the strong-field approximation.
Physical Review A
, 96
(1)
, Article 013414. 10.1103/PhysRevA.96.013414.
Preview |
Text
Lai_Near-threshold_photoelectron.pdf - Published Version Download (4MB) | Preview |
Abstract
We study photoelectron angular distributions (PADs) near the ionization threshold with a newly developed Coulomb quantum-orbit strong-field approximation (CQSFA) theory. The CQSFA simulations exhibit an excellent agreement with the result from the time-dependent Schrödinger equation. We show that the low-energy fan-shaped pattern in the PADs corresponds to a subcycle time-resolved holographic structure and stems from the significant influence of the Coulomb potential on the phase of the forward-scattered electron trajectories, which affects different momenta and scattering angles unequally. Our work provides a direct explanation of how the fan-shaped structure is formed, based on the quantum interference of direct and forward-scattered orbits. Moreover, our work shows that the fan-shaped pattern can be used to extract information on the target structure, as the number of fringes in the PADs depends strongly on the symmetry of the electronic bound state.
| Type: | Article |
|---|---|
| Title: | Near-threshold photoelectron holography beyond the strong-field approximation |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevA.96.013414 |
| Publisher version: | https://doi.org/10.1103/PhysRevA.96.013414 |
| Language: | English |
| Additional information: | This is the published version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1545989 |
Archive Staff Only
 |
View Item |
