Results 31 to 40 of about 33,512 (252)
Cluster size dependence of high-order harmonic generation
New Journal of Physics, 2017 We investigate high-order harmonic generation (HHG) from noble gas clusters in a supersonic gas jet. To identify the contribution of harmonic generation from clusters versus that from gas monomers, we measure the high-order harmonic output over a broad ...
Y Tao +7 more
doaj +1 more source
Broadband Spectral Amplitude Control in High-Order Harmonic Generation
Applied Sciences, 2012 A technique for broadband spectral amplitude control of light pulses produced in high-order harmonic generation (HHG) is presented. It has been shown elsewhere that broadband spectral phase control in HHG is achievable using a computerized feedback loop ...
Carles Serrat
doaj +1 more source
High-Order Harmonic Generation in Atom Clusters
Physical Review Letters, 1996 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
Theoretical description of high-order harmonic generation in solids
New Journal of Physics, 2013 We consider several aspects of high-order harmonic generation in solids: the effects of elastic and inelastic scattering, varying pulse characteristics and inclusion of material-specific parameters through a realistic band structure.
A F Kemper +3 more
doaj +1 more source
AIP Advances, 2023 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
APL Photonics, 2022 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
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Theory of high-order harmonic generation for gapless graphene
New Journal of Physics, 2018 We study the high-harmonic spectrum emitted by a single-layer graphene, irradiated by an ultrashort intense infrared laser pulse. We show the emergence of the typical non-perturbative spectral features, harmonic plateau and cut-off, for mid-infrared ...
Óscar Zurrón +2 more
doaj +1 more source
Divergence of High-Order Harmonic Generation by a Convex Plasma Surface
Applied Sciences, 2022 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
Design and analysis strategies for robust microbiome ageing research
FEBS Letters, EarlyView.The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik +5 more
wiley +1 more source
Molecular Oncology, EarlyView.Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson +9 more
wiley +1 more source