Spin-Orbit Effects in Atomic High-Harmonic Generation

Abstract

Spin-orbit interactions lead to small energy gaps between the outer-most $p_{1/2}$ and $p_{3/2}$ shells of noble gas atoms. Strong-field pulses tunnel-ionize an electron out of either shell resulting in spin-orbit-driven hole motion. These hole dynamics affect the HHG yield. However, the spectral shape as well as the angular distribution of the HHG emission is not influenced by spin-orbit coupling. We demonstrate the spin-orbit effect on atomic krypton by solving the multi-electron Schrödinger equation with the time-dependent configuration-interaction singles (TDCIS) approach. We also provide pulse parameters where this effect can be identified in experiments through an enhancement in the HHG yield as the wavelength of the strong-field pulse increases.

9 pages, 5 figures

References in corpus (12)

• Accurate retrieval of structural information from laser-induced photoelectron and high-harmonic spectra by few-cycle laser pulses
• Quantum path interference in the wavelength dependence of high-harmonic generation
• Self-probing of Molecules with High Harmonic Generation
• Decoherence in Attosecond Photoionization
• Strong-Field Many-Body Physics and the Giant Enhancement in the High-Harmonic Spectrum of Xenon
• Theory of Attosecond Transient Absorption Spectroscopy of Krypton for Overlapping Pump and Probe Pulses
• The Impact of Multichannel and Multipole Effects on the Cooper Minimum in the High-Harmonics Spectrum of Argon
• Enhanced nonlinear response of Ne${}^{8+}$ to intense ultrafast x rays
• Interference between competing pathways in harmonic generation
• Atomic harmonic generation in time-dependent R-matrix theory
• Introducing many-body physics using atomic spectroscopy
• Adiabaticity and diabaticity in strong-field ionization

Cited by in corpus (9)

• RMT: R-matrix with time-dependence. Solving the semi-relativistic, time-dependent Schrodinger equation for general, multi-electron atoms and molecules in intense, ultrashort, arbitrarily polarized laser pulses
• Probe of Multi-electron Dynamics in Xenon by Caustics in High Order Harmonic Generation
• Probing electronic wavefunctions by all-optical attosecond interferometry
• Harmonic generation of noble-gas atoms in the Near-IR regime using ab-initio time-dependent R-matrix theory
• Theoretical characterization of the collective resonance states underlying the xenon giant dipole resonance
• Role of Spin-Orbit Coupling in High-order Harmonic Generation Revealed by Super-Cycle Rydberg Trajectories
• Driving Rabi oscillations at the giant dipole resonance in xenon
• On the Cooper Minimum in Singly ionized and Neutral Argon
• Implementation of gauge-invariant time-dependent configuration interaction singles method for three-dimensional atoms