Electron dynamics in the carbon atom induced by spin-orbit interaction

Abstract

We use R-Matrix theory with Time dependence (RMT) to investigate multiphoton ionization of ground-state atomic carbon with initial orbital magnetic quantum number $M_L$=0 and $M_L$=1 at a laser wavelength of 390 nm and peak intensity of 10${}^{14}$ W cm${}^{-2}$. Significant differences in ionization yield and ejected-electron momentum distribution are observed between the two values for $M_L$. We use our theoretical results to model how the spin-orbit interaction affects electron emission along the laser polarization axis. Under the assumption that an initial C atom is prepared at zero time delay with $M_L=0$, the dynamics with respect to time delay of an ionizing probe pulse modelled using RMT theory is found to be in good agreement with available experimental data.

8 pages, 5 figures

References in corpus (6)

• Time delay between photoemission from the 2p and 2s subshells of Neon
• Theory of Attosecond Transient Absorption Spectroscopy of Krypton for Overlapping Pump and Probe Pulses
• A combined R-matrix eigenstate basis set and finite-differences propagation method for the time-dependent Schr\"{od}dinger equation: the one-electron case
• Time-dependent R-matrix theory applied to two-photon double ionization of He
• Multichannel Interference In High-Order Harmonic Generation From Ne(+) Driven By Ultrashort Intense Laser Pulse
• Enhanced Harmonic Generation from M=1 aligned Ar+

Cited by in corpus (6)

• Harmonic generation of noble-gas atoms in the Near-IR regime using ab-initio time-dependent R-matrix theory
• Double Ionisation in R-Matrix Theory Using a 2-electron Outer Region
• On the Cooper Minimum in Singly ionized and Neutral Argon
• Spin-orbit interactions may relax the rigid conditions leading to flat bands
• Multiphoton inner-shell ionization of the carbon atom
• Dynamics of atomic spin-orbit-state wave packets produced by short-pulse laser photodetachment