Multielectron interference of intraband harmonics in solids

Abstract

High harmonic generation in solids provides us compact and coherent UV sources. Our simulations illustrate abnormal harmonic yield dependence on the intensity of driving or pre-excitation pulses. A multielectron interference model is proposed to reveal the mechanism of the extreme nonlinear optical phenomena. We find that the $k$-resolved intraband harmonic demonstrates different symmetry, phase, and amplitude, which can be observed by using a resonant pre-excitation pulse. The position of the interference minimum obtained by solving the semiconductor Bloch equations agrees well with that obtained by our $k$-resolved semiclassical model. This interference model can help us probe the $k$-resloved band structure and optimize the ultrafast electron-hole dynamics for solid harmonic processes.

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Cited by in corpus (5)

• High-harmonic generation in metallic titanium nitride
• Crystal-momentum-resolved contributions to multiple plateaus of high-order harmonic generation from band-gap materials
• Edge-state and bulk-like laser-induced correlation effects in high-harmonic generation from a linear chain
• Strong-field ionization of atoms with $p^3$ valence shell: Two versus three active electrons
• Edge-state-induced correlation effects in two-color high-harmonic generation