High-harmonic generation from solids

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August undefined, 2024

WebHá 9 horas · In this paper, the stabilization and high efficiency of an unstable Second Harmonic Generation (SHG) of an Nd:YVO4 laser with a KTP intracavity is … Web28 de mar. de 2024 · In solids, due to additional phenomena such as multi-band superposition⁶ and crystal symmetry dependency7,8, the HHG mechanism appears to be …

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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 … WebIn this experiment, the highest harmonics originated not from neutral atoms but from He +, Ne +, and Ne 2+ ions, which obviously increases Ip in the Ip + α Up rule. Intense laser interaction with solid targets also generates high harmonics [ 47, 48 ]. ipf new treatments

High-order harmonic generation from aligned HCN molecules …

Web12 de abr. de 2024 · Abstract The efficient generation, accurate detection, and detailed physical tracking of energetic electrons are of applied interest for high harmonics generation, electron-impact spectroscopy, and femtosecond time-resolved scanning tunneling microscopy. We here investigate the generation of photoelectrons (PEs) by … 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 solids and discuss related properties such as the cutoff of the harmonic spectra or the role of the dephasing time. 2.1. Interband polarization and intraband currents: An introduction WebHigh harmonic generation(HHG) is a non-linear process during which a target (gas, plasma, solid or liquid sample) is illuminated by an intense laser pulse. Under such … ipfn python

High-harmonic generation from an epsilon-near-zero material

Multi-channel contributions to infrared-driven high-harmonic generation ...

WebHigh-order harmonic generation (HHG) from solids is one source of coherent extreme ultraviolet radiation and is considered as a promising way to obtain attosecond pulses, where the key issue is to enhance HHG yield and control its temporal characteristic. The role of the dopant on enhancement of HHG yield is investigated via solving the time … Web1 de jan. de 2024 · High-harmonic generation in solids Authors: Lisa Ortmann Alexandra S. Landsman Abstract The last decade saw attosecond physics, traditionally focused on atomic and molecular gases, move rapidly... ipf newsWeb13 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 … ipf of mgo

"Web19 de nov. de 2024 · High-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,... " - High-harmonic generation from solids

High-harmonic generation from solids

Huygens-Fresnel Picture for High Harmonic Generation in Solids

Web22 de nov. de 2024 · High harmonic generation (HHG) is usually described by the laser-induced recollision of particlelike electrons, ... Huygens-Fresnel Picture for High …

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WebWe present a velocity-gauge model for the generation of even-order high harmonics, and reveal that the even-order harmonics originate from the multiple-step transitions among the energy bands in momentum space, while the odd-order harmonics are mainly from direct transitions. The lower valence band is found vital for the generation of even ... Web17 de ago. de 2024 · High harmonic generation (HHG) in crystals has revealed a wealth of perspectives such as all-optical mapping of the electronic band structure, ultrafast quantum information, ... Ghimire and D. A. Reis, “ High-harmonic generation from solids,” Nat. Phys. 15, 10 (2024).

Web19 de nov. de 2024 · @article{osti_1493418, title = {High-harmonic generation from solids}, author = {Ghimire, Shambhu and Reis, David A.}, abstractNote = {We report that high-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 … Web19 de nov. de 2024 · High Harmonic Generation High-harmonic generation from solids Authors: Shambhu Ghimire Stanford University David A. Reis Abstract High-harStanford …

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 … Web1 de jan. de 2024 · Synopsis We numerical and analytically investigate the electron dynamics of high-order harmonic generation (HHG) in solids driven by strong mid-infrared few-cycle laser pulses.

Web1 de jan. de 2024 · This expansion was stimulated by experimental observation of high-harmonic generation (HHG) from solids. HHG, first observed in atomic gas a few decades ago, is a unique process underlying the creation of attosecond pulses and has many other applications involving imaging and controlling electron dynamics.

Web28 de abr. de 2015 · We study the generation of high-harmonic radiation by Bloch electrons in a model transparent solid driven by a strong midinfrared laser field. … ipf offshoreWebHIGH-HARMONIC GENERATION FROM GASES AND SOLIDS ACADEMISCH PROEFSCHRIFT ter verkrijging van de graad Doctor of Philosophy aan de Vrije … ipf ol400321WebHigh harmonic generation (HHG) versus the crystal orientation of a monolayer MoS2 is investigated experimentally. It is found that the laser wavelength and the multiband electronic structure plays an important role in HHG process. ipf offshore wind 2021 conferenceWebWe demonstrate that high-harmonic generation (HHG) in solids dominantly originates from strongly localized surface states through non-perturbative processes. Measurements reveal that HHG from bulk states is suppressed by at least 1-2 orders of magnitude due to the lack of phase matching, when generated perturbatively, or by at least 3-4 orders of ipf ol100370Web16 de nov. de 2024 · High-harmonic generation (HHG) in solids has emerged in recent years as a rapidly expanding and interdisciplinary field, attracting attention from both the … ipf offshore windWeb8 de jan. de 2024 · To cite this article: Chao Yu, Shicheng Jiang & Ruifeng Lu (2024) High order harmonic generation in solids: a review on recent numerical methods, Advances in Physics: X, 4:1, 1562982, DOI: 10.1080 ... ip foguete fivemWeb1 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 … ipf of uo2