Gauge invariance and the interpretation of inter- and intraband processes in high-order harmonic generation from bulk solids [PDF]
, 2017 A theoretical model for high-order harmonic generation (HHG) in bulk solids is considered. Our approach treats laser-induced inter- and intraband currents on an equal footing.
Foldi, Peter
core +3 more sources
Hyper-Raman lines emission concomitant with high-order harmonic generation
New Journal of Physics, 2019 Hyper-Raman lines (HRL) resulting from strong-field light–matter interaction have been predicted theoretically in the 1990s but never identified in high-order harmonic generation experiments.
Etienne Bloch +7 more
doaj +1 more source
High Harmonic Generation driven Extreme Ultraviolet 0th order Scatterometry for Nanostructure Characterization [PDF]
EPJ Web of ConferencesWe introduce a tabletop high harmonic generation (HHG) scatterometry technique to extract structural and material characteristics of periodic nanostructures. Grazing incidence reflection scatterometry enables fast and robust measurements of linewidth and
Corazza Francesco +6 more
doaj +1 more source
High-order harmonic generation using a high-repetition-rate turnkey laser
, 2014 We generate high-order harmonics at high pulse repetition rates using a turnkey laser. High-order harmonics at 400 kHz are observed when argon is used as target gas.
Carlström, Stefanos, +8 more
core +1 more source
Two-center interference and ellipticity in high-order harmonic generation from H$_2^+$ [PDF]
, 2010 We present a theoretical investigation into the two-center interference in aligned H$_2^+$. The influence of the laser field on the recombination step is investigated by comparing laser-induced harmonic generation with harmonic generation from field-free
Lein, Manfred, van der Zwan, Elmar V.
core +3 more sources
Relativistic short-pulse high harmonic generation at 1.3 and 2.1 μm wavelengths
New Journal of Physics, 2019 While nearly all investigations of high order harmonic generation with relativistically intense laser pulses have taken place at 800 or 1053 nm, very few experimental studies have been done at other wavelengths.
N Beier +5 more
doaj +1 more source
Focusing Properties of High-Order Harmonics
Ultrafast Science, 2021 Many applications of the extreme ultraviolet (XUV) radiation obtained by high-order harmonic generation (HHG) in gases require a small focus area in order to enable attosecond pulses to reach a high intensity.
Maria Hoflund +12 more
doaj +1 more source
High-order harmonic spectroscopy in an ionized high-density target
Frontiers in Physics, 2022 We use high-order harmonic spectroscopy to study ionization dynamics in a macroscopic target with tunable density, spanning over six orders of magnitude.
Heiko G. Kurz +12 more
doaj +1 more source
Ultrahigh harmonics from laser-assisted ion-atom collisions
, 2003 We present a theoretical analysis of high-order harmonic generation from ion-atom collisions in the presence of linearly polarized intense laser pulses.
A. McPherson +4 more
core +1 more source
Local dynamics in high-order harmonic generation using Bohmian trajectories
, 2013 We investigate high-order harmonic generation from a Bohmian-mechanical perspective, and find that the innermost part of the core, represented by a single Bohmian trajectory, leads to the main contributions to the high-harmonic spectra.
B. B. Augstein +5 more
core +1 more source