Web21 de jun. de 2024 · At present, it is widely accepted that HHG in solids comes from two major contributions: intraband current and interband polarization [ 30, 31, 32 ]; the complex coupling between the two mechanisms not only affects the charge injection from the valence band to the conduction band but also affects the motion of excited-state electron wave … WebHigh-harmonic generation in atomic gases has been studied for decades, and has formed the basis of attosecond science. Observation of high-order harmonics from bulk crystals was, however, reported much more recently, in 2010. This Review surveys the subsequent efforts aimed at understanding the microscopic mechanism of solid-state harmonics in …
(PDF) High order harmonic generation in solids: A review on …
Web23 de fev. de 2024 · High-order harmonic generation of atoms irradiated by an ultrashort laser pulse was calculated by numerically solving the time-dependent Schrödinger … WebHigh-harmonic generation (HHG) is a signature optical phenomenon of strongly driven, nonlinear optical systems. Specifically, the understanding of the HHG process in rare gases has played a key role in the development of attosecond science1. Recently, HHG has also been reported in solids, providing novel opportunities such as controlling strong-field … photo of milk thistle
Symmetry and Polarization of High-Order Harmonic Generation from Solids ...
Web1 de jan. de 2024 · We introduced a quasi-classical step-by-step model for interband transitions in the k space to reveal the mechanisms of high-order harmonic generation (HHG) in solids. The ultrafast... Web13 de abr. de 2024 · One of the most fundamental and prominent aspects of nonlinear optics is the high-order harmonic generation (HHG) in gaseous and solids media [1,2,3,4,5].The HHG process can be described by the semiclassical three-step model (TSM) [].The TSM involves tunnel ionization, acceleration of the electron in the laser field, and recollision of … Web1 de jan. de 2024 · This section provides an in-depth introduction to high-harmonic generation (HHG) in solids. We will focus on the mechanisms used to describe HHG in … photo of migrants