The interaction of ultrafast laser pulses of relativistic intensity with high aspect ratio
nanostructures can efficiently and volumetrically heat matter to an ultra-high-energy-density …

Soft x-ray microscopy in the water window (∼ 285− 535 e V) is an emerging and unique tool
for 2D and 3D imaging of unstained intact cellular samples in their near-native state with few …

Controlling the group velocity of an ultrashort laser pulse by means of spatio-temporal
couplings has been proposed to overcome the inherent limitations in laser–plasma …

Interaction of a solid material with focused, intense pulses of high-energy photons or other
particles (such as electrons and ions) creates a strong electronic excitation state within an …

We present a comprehensive experimental and theoretical study on superfluorescence in
the extreme ultraviolet wavelength regime. Focusing a free-electron laser pulse in a cell …

Amplification of attosecond pulses produced via high harmonic generation is a formidable
problem since none of the amplifiers can support the corresponding PHz bandwidth …

The method proposed by Khairulin et al.[JETP Lett. 117, 652 (2023) 10.1134/
S0021364023600921] for converting the linearly polarized radiation of high-order …

We derive the analytical theory describing the process of subfemtosecond pulse formation
from a quasimonochromatic seeding extreme ultraviolet (XUV) radiation, which propagates …

We report evidence of strong lasing on the 4 p-4 s transition at 62.7 nm in nickel-like krypton
occurring simultaneously with the usual 4 d-4 p lasing at 32.8 nm. The gain dynamics of both …

In this paper, we present the analytical theory of attosecond-pulse formation via optical
modulation of an active medium of the hydrogen-like C 5+ plasma-based x-ray laser at 3.4 …