Results 31 to 40 of about 261,800 (180)
High-order harmonic generation from ultrafast matter Talbot effect [PDF]
High-order harmonic spectroscopy is a robust method for probing electron dynamics under the influence of a driving field, capturing phenomena as brief as attoseconds.
Plaja Luis +2 more
doaj +1 more source
High-order-harmonic generation of a doped semiconductor [PDF]
We investigate the high-order harmonic generation (HHG) in doped semiconductors. The HHG is simulated with the single-electron time-dependent Schr dinger equation (TDSE). The results show that the high-order harmonics in the second plateau generated from the doped semiconductors is about 1 to 3 orders of magnitude higher than those from the undoped ...
Huang, Tengfei +5 more
openaire +2 more sources
The study of high-order harmonic generation (HHG) in confined quantum systems is essential for developing a comprehensive physical description of harmonic generation from atoms to bulk solids.
Haifeng Yin +3 more
doaj +1 more source
Microfluidic devices for quasi-phase-matching in high-order harmonic generation
The development of bright eXtreme UltraViolet (XUV) and soft x-ray sources based on high-order harmonic generation is boosting advances toward understanding the behavior of matter on the attosecond timescale.
A. G. Ciriolo +14 more
doaj +1 more source
Intrapulse x-ray parametric amplification in high-order-harmonic generation [PDF]
We demonstrate strong-field-driven impulsive XUV-x-ray parametric amplification (IXPA) processes in high-order harmonic generation at the single-atom level by using ab initio calculations.
Serrat Jurado, Carles
core +2 more sources
High-Order Harmonic Generation in Atom Clusters
We report the generation of short-wavelength, high-order harmonics of intense laser radiation from atom clusters. Clusters containing about 1${0}^{3}$ atoms are produced in a high-pressure gas jet. We show them to be a unique nonlinear medium. Compared with monomer gases they yield a higher appearance intensity for a given harmonic order, stronger ...
, Donnelly +4 more
openaire +3 more sources
Waveform-Controlled Relativistic High-Order-Harmonic Generation
We consider the efficiency limit of relativistic high-order-harmonic emission from solid targets achievable with tailored light fields. Using one-dimensional particle-in-cell simulations, the maximum energy conversion efficiency is shown to reach as high as 10% for the harmonics in the range of 80-200 eV and is largely independent of laser intensity ...
Matthew R, Edwards, Julia M, Mikhailova
openaire +3 more sources
Divergence of High-Order Harmonic Generation by a Convex Plasma Surface
The electron density profile on a plasma surface has a decisive influence on the mechanism and characteristics of the plasma high-order harmonic generation.
Chun Yang +11 more
doaj +1 more source
Quantitative Rescattering Theory for high-order harmonic generation from molecules [PDF]
The Quantitative Rescattering Theory (QRS) for high-order harmonic generation (HHG) by intense laser pulses is presented. According to the QRS, HHG spectra can be expressed as a product of a returning electron wave packet and the photo-recombination ...
Le, Anh-Thu +4 more
core +6 more sources
Illuminating Molecular Symmetries with Bicircular High-Order-Harmonic Generation
We present a complete theory of bicircular high-order-harmonic emission from N-fold rotationally symmetric molecules. Using a rotating frame of reference we predict the complete structure of the high-order-harmonic spectra for arbitrary driving frequency
Madsen, Lars Bojer, Reich, Daniel M.
core +1 more source

