Polarization tagging of two-photon double ionization by elliptically polarized XUVs
arXiv:1811.09110 · doi:10.1103/PhysRevA.99.023413
Abstract
We explore the influence of elliptical polarization on the (non)sequential two-photon double ionization of atomic helium with ultrashort extreme ultraviolet (XUV) light fields using time-dependent full ab-initio simulations. The energy and angular distributions of photoelectrons are found to be strongly dependent on the ellipticity. The correlation minimum in the joint angular distribution becomes more prominently visible with increasing ellipticity. In a pump-probe sequence of two subsequent XUV pulses with varying ellipticities, polarization tagging allows to discriminate between sequential and nonsequential photoionization. This clear separation demonstrates the potential of elliptically polarized XUV fields for improved control of electronic emission processes.
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- Dialogue on analytical and ab initio methods in attoscience
- Polarisation control of quasi-monochromatic XUV produced via resonant high harmonic generation
- Circular holographic ionization-phase meter
- Modeling tomographic measurements of photoelectron vortices in counter-rotating circularly polarized laser pulses
- Angle-resolved time delays for shake-up ionization of helium
- Towards the complete phase profiling of attosecond wave packets
- Two-photon double ionization with finite pulses: Application of the virtual sequential model to helium