Probing spin-orbit-interaction-induced electron dynamics in the carbon atom by multiphoton ionization
Year: 2014
Type: article
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 ${10}^{14}\phantom{\rule{4pt}{0ex}}{\mathrm{W}/\mathrm{cm}}^{2}$. 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 modeled by using RMT theory is found to be in good agreement with available experimental data.
Source: Physical Review A
Authors: H. F. Rey, H. W. van der Hart
Institution: Queen's University Belfast
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,675
OpenAlex ID: W2474264193