The quest for ever‐shorter optical pulses has been ongoing for over half a century. Although
few‐cycle pulses have been generated for nearly 40 years, pulse lengths below the single …

Generation of an elliptically polarized attosecond pulse train by an orthogonally polarized
two-color (OTC) laser field is investigated theoretically and simulated numerically. The OTC …

When a two-color Laguerre-Gaussian laser beam propagates through an indium tin oxide
(ITO) material, the spatial distributions of odd-and even-order vortex harmonics carrying …

High harmonic generation (HHG) is strongly modified near plasmonic nanostructures due to
confinement and inhomogeneity of the electromagnetic field. Previous studies have …

Development of attosecond laser technology allows us to measure electron dynamics such
as photoionization delays between different species or electronic states. In general, the …

We study high-order harmonics generated by an intense multicycle 800 nm laser pulse in
the presence of a weaker 1300 nm mid-infrared (MIR) pulse. Additionally to the previously …

Coherent light sources in the soft X-ray region (SXR: 0.6-8 nm, 2-0.15 keV) are vital to a
number of scientific and industrial applications. The short wavelength and well-defined …

The motivation to control and temporarily isolate a single quantum mechanical event like an
electronic transition has driven the quest for ever shorter light pulses. Controlling a highly …

In this work, we report on coherent control of electron dynamics in atoms via attosecond
pulse-shaping. We show that the photoelectron emission from argon gas produced by …

When the electric field of a laser pulse approaches the field strength between a nucleus and
valence electron, it is capable of ionizing atoms or molecules via quantum tunneling …