Edge-state and bulk-like laser-induced correlation effects in high-harmonic generation from a linear chain

Abstract

We explore the significance of laser-induced correlation effects for high-order harmonic generation (HHG) in a linear chain model of a generic band gap material for both single-IR-pulse and VUV-pump--IR-probe HHG schemes. We examine various pump-pulse excitations, and catagorize signatures of laser-induced correlation effects into two classes related to edge-state and bulk-like effects. The relative importance of the edge-state effects decrease with increasing system-size, while the bulk-like effects remain. We identify regimes where these effects may alter the harmonic yield by an order of magnitude, but also regions where they may be neglected. We characterize the underlying laser-induced dynamics of the correlational mechanisms, using both an electronic population-description in a static field-free basis, and comparing to a bandstructure-picture with laser-induced time-dependent energy shifts. From this we provide a guideline on when to account for laser-induced electron correlations and give an estimate of the time-scale in which the laser-induced electron-electron interactions can cause correlational changes in the harmonic spectra. We find this timescale to be a few tens of femtoseconds.

References in corpus (34)

• Sub-cycle control of terahertz high-harmonic generation by dynamical Bloch oscillations
• Real-time observation of interfering crystal electrons in high-harmonic generation
• Impact of the electronic band structure in high-harmonic generation spectra of solids
• High harmonic imaging of ultrafast many-body dynamics in strongly correlated systems
• Ellipticity dependence of high-harmonic generation in solids: unraveling the interplay between intraband and interband dynamics
• High-harmonic generation in solids with and without topological edge states
• Ultrafast modification of Hubbard $U$ in a strongly correlated material: ab initio high-harmonic generation in NiO
• Strong-Field Perspective on High-Harmonic Radiation from Bulk Solids
• The Effect of Multiple Conduction Bands on High Harmonic Emission from Dielectrics
• Plasmon-assisted high-harmonic generation in graphene
• High-Harmonic Generation in Mott Insulators
• Reciprocal-space-trajectory perspective on high harmonic generation in solids
• Trajectory analysis of high-harmonic generation from periodic crystals
• Imperfect Recollisions in High-Harmonic Generation in Solids
• Multi-level perspective on high-order harmonic generation in solids
• Diabatic Mechanisms of Higher-Order Harmonic Generation in Solid-State Materials under High-Intensity Electric Fields
• Structure- and laser-gauges for the semiconductor Bloch equations in high-harmonic generation in solids
• High-Harmonic Generation in a Correlated Electron System
• High-order harmonic generation in solid slabs beyond the single active electron
• Enhanced high-order harmonic generation in donor-doped band-gap materials
• Nonreciprocal Terahertz Second Harmonic Generation in Superconducting NbN under Supercurrent Injection
• High-harmonic generation in one-dimensional Mott insulator
• Finite-system effects on high-harmonic generation: from atoms to solids
• Enhanced high harmonic generation in semiconductors by the excitation with multi-color pulses
• High-harmonic generation in quantum spin systems
• Nonsequential Double Recombination in Intense Laser Fields
• Crystal-momentum-resolved contributions to multiple plateaus of high-order harmonic generation from band-gap materials
• Time-dependent Hartree-Fock study of electron-hole interaction effects on high-harmonic generation from periodic crystals
• High-harmonic generation in spin-orbit coupled systems
• Multielectron interference of intraband harmonics in solids
• Attosecond transient-absorption spectroscopy of polar molecules
• Edge-state-induced correlation effects in two-color high-harmonic generation
• Non-Sequential Double Recombination High Harmonic Generation in Molecular-like Systems
• Same Period Emission and Recombination in Non-Sequential Double Recombination High-Harmonic Generation in H${}_2$

Cited by in corpus (6)

• Introduction to theory of high-harmonic generation in solids: tutorial
• Signatures of multi-band effects in high-harmonic generation in monolayer MoS${}_2$
• Correlation effects in high-harmonic generation from finite systems
• Uncovering Extreme Nonlinear Dynamics in Solids Through Time-Domain Field Analysis
• Propagation time and nondipole contributions to intraband high-harmonic generation
• Enhanced high-order harmonics through periodicity breaks: from backscattering to impurity states