Longitudinal photoelectron momentum shifts induced by absorbing a single XUV photon in diatomic molecules

Abstract

The photoelectron momentum shifts along the laser propagation are investigated by the time-dependent perturbation theory for diatomic molecules, such as H${}_2^{+}$, N${}_2$ and O${}_2$. Such longitudinal momentum shifts characterize the photon momentum sharing in atoms and molecules, and oscillate with respect to photon energies, presenting the double-slit interference structure. The atomic and molecular contributions are disentangled analytically, which gives intuitive picture how the double-slit interference structure is formed. Calculation results show the longitudinal photoelectron momentum distribution depends on the internuclear distance, molecular orientation and photon energy. The current laser technology is ready to approve these theoretical predictions.

5pages, 4 figures

References in corpus (5)

• Breakdown of the Dipole Approximation in Strong-Field Ionization
• Partitioning of the linear photon momentum in multiphoton ionization
• Under-the-barrier dynamics in laser-induced relativistic tunneling
• Evolution of the transverse photoelectron momentum distribution for atomic ionization driven by a laser pulse with varying ellipticity
• Momentum partition between constituents of exotic atoms during laser induced tunneling ionization

Cited by in corpus (3)

• Nondipole effects in atomic dynamic interference
• Photon-momentum transfer in diatomic molecules: an ab initio study
• Nondipole effects on the double-slit interference in molecular ionization by xuv pulses