Extreme ultraviolet
View article
The Solar Orbiter EUI instrument: The Extreme Ultraviolet Imager Open
Context. The Extreme Ultraviolet Imager (EUI) is part of the remote sensing instrument package of the ESA/NASA Solar Orbiter mission that will explore the inner heliosphere and observe the Sun from vantage points close to the Sun and out o…
View article
Attosecond science based on high harmonic generation from gases and solids Open
Recent progress in high power ultrafast short-wave and mid-wave infrared lasers has enabled gas-phase high harmonic generation (HHG) in the water window and beyond, as well as the demonstration of HHG in condensed matter. In this Perspecti…
View article
0.5-keV Soft X-ray attosecond continua Open
Attosecond light pulses in the extreme ultraviolet have drawn a great deal of attention due to their ability to interrogate electronic dynamics in real time. Nevertheless, to follow charge dynamics and excitations in materials, element sel…
View article
The active lives of stars: A complete description of the rotation and XUV evolution of F, G, K, and M dwarfs Open
Aims. We study the evolution of the rotation and the high energy X-ray, extreme ultraviolet (EUV), and Ly- α emission for F, G, K, and M dwarfs, with masses between 0.1 and 1.2 M ⊙ , and provide a freely available set of evolutionary track…
View article
Controlling the orbital angular momentum of high harmonic vortices Open
Optical vortices, which carry orbital angular momentum (OAM), can be flexibly produced and measured with infrared and visible light. Their application is an important research topic for super-resolution imaging, optical communications and …
View article
Ultraviolet spectra of extreme nearby star-forming regions – approaching a local reference sample for JWST Open
Nearby dwarf galaxies provide a unique laboratory in which to test stellar population models below Z(circle dot)/2. Such tests are particularly important for interpreting the surprising high-ionization ultraviolet (UV) line emission detect…
View article
Physics of laser-driven tin plasma sources of EUV radiation for nanolithography Open
Laser-produced transient tin plasmas are the sources of extreme ultraviolet (EUV) light at 13.5 nm wavelength for next-generation nanolithography, enabling the continued miniaturization of the features on chips. Generating the required EUV…
View article
The ELI-ALPS facility: the next generation of attosecond sources Open
This review presents the technological infrastructure that will be available at the Extreme Light Infrastructure Attosecond Light Pulse Source (ELI-ALPS) international facility. ELI-ALPS will offer to the international scientific community…
View article
Review of recent advances in inorganic photoresists Open
The current review aims to focus on recent progress and opportunities in inorganic photoresist materials, including their fabrication process, performance and working mechanism.
View article
High Sensitivity Resists for EUV Lithography: A Review of Material Design Strategies and Performance Results Open
The need for decreasing semiconductor device critical dimensions at feature sizes below the 20 nm resolution limit has led the semiconductor industry to adopt extreme ultra violet (EUV) lithography with exposure at 13.5 nm as the main next…
View article
Theory of strong-field attosecond transient absorption Open
Attosecond transient absorption is one of the promising new techniques being developed to exploit the availability of sub-femtosecond extreme ultraviolet (XUV) pulses to study the dynamics of the electron on its natural time scale. The tem…
View article
The MAVEN EUVM model of solar spectral irradiance variability at Mars: Algorithms and results Open
Solar extreme ultraviolet (EUV) radiation is a primary energy input to the Mars atmosphere, causing ionization and driving photochemical processes above approximately 100 km. Because solar EUV radiation varies with wavelength and time, mea…
View article
Introduction to macroscopic power scaling principles for high-order harmonic generation Open
International audience
View article
Near- and Extended-Edge X-Ray-Absorption Fine-Structure Spectroscopy Using Ultrafast Coherent High-Order Harmonic Supercontinua Open
Recent advances in high-order harmonic generation have made it possible to use a tabletop-scale setup to produce spatially and temporally coherent beams of light with bandwidth spanning 12 octaves, from the ultraviolet up to x-ray photon e…
View article
Angular dependence of photoemission time delay in helium Open
Time delays of electrons emitted from an isotropic initial state with the absorption of a single photon and leaving behind an isotropic ion are angle independent. Using an interferometric method involving XUV attosecond pulse trains and an…
View article
Laser waveform control of extreme ultraviolet high harmonics from solids Open
Solid-state high-harmonic sources offer the possibility of compact, high-repetition-rate attosecond light emitters. However, the time structure of high harmonics must be characterized at the sub-cycle level. We use strong two-cycle laser p…
View article
High-NA EUV lithography: current status and outlook for the future Open
High-NA extreme ultraviolet (EUV) lithography is currently in development. Fabrication of exposure tools and optics with a numerical aperture (NA) equal to 0.55 has started at ASML and Carl Zeiss. Lenses with such high NA will have very sm…
View article
Nonperturbative Twist in the Generation of Extreme-Ultraviolet Vortex Beams Open
High-order harmonic generation (HHG) has been recently proven to produce extreme-ultraviolet (XUV) vortices from the nonlinear conversion of infrared twisted beams. Previous works have demonstrated a linear scaling law of the vortex charge…
View article
Light sources for high-volume manufacturing EUV lithography: technology, performance, and power scaling Open
Extreme ultraviolet (EUV) lithography is expected to succeed in 193-nm immersion multi-patterning technology for sub-10-nm critical layer patterning. In order to be successful, EUV lithography has to demonstrate that it can satisfy the ind…
View article
Atomic-like high-harmonic generation from two-dimensional materials Open
Two-dimensional materials offer a unique platform where both bulk and atomic HHG can be investigated.
View article
Direct mapping of curve-crossing dynamics in IBr by attosecond transient absorption spectroscopy Open
A panoramic view of photodissociation As light pulses get shorter in time, they correspondingly get broader in frequency. Kobayashi et al. take advantage of both properties of attosecond pulses to elucidate iodine monobromide (IBr) photodi…
View article
Determination of Differential Emission Measure from Solar Extreme Ultraviolet Images Open
The Atmospheric Imaging Assembly (AIA) on board the Solar Dynamic Observatory ( SDO ) has been providing high-cadence, high-resolution, full-disk UV-visible/extreme ultraviolet (EUV) images since 2010, with the best time coverage among all…
View article
Single-pass high harmonic generation at high repetition rate and photon flux Open
Art. 172002, 26 S.
View article
Controlling Nonsequential Double Ionization in Two-Color Circularly Polarized Femtosecond Laser Fields Open
Atoms undergoing strong-field ionization in two-color circularly polarized femtosecond laser fields exhibit unique two-dimensional photoelectron trajectories and can emit bright circularly polarized extreme ultraviolet and soft-x-ray beams…
View article
Attosecond spectroscopy for the investigation of ultrafast dynamics in atomic, molecular and solid-state physics Open
Since the first demonstration of the generation of attosecond pulses (1 as = 10 −18 s) in the extreme-ultraviolet spectral region, several measurement techniques have been introduced, at the beginning for the temporal characterization of t…
View article
Global modeling of thermospheric airglow in the far ultraviolet Open
The Global Airglow (GLOW) model has been updated and extended to calculate thermospheric emissions in the far ultraviolet, including sources from daytime photoelectron‐driven processes, nighttime recombination radiation, and auroral excita…
View article
Helicity-Selective Enhancement and Polarization Control of Attosecond High Harmonic Waveforms Driven by Bichromatic Circularly Polarized Laser Fields Open
High harmonics driven by two-color counterrotating circularly polarized laser fields are a unique source of bright, circularly polarized, extreme ultraviolet, and soft x-ray beams, where the individual harmonics themselves are completely c…
View article
Ptychographic coherent diffractive imaging with orthogonal probe relaxation Open
Ptychography is a scanning coherent diffractive imaging (CDI) technique that relies upon a high level of stability of the illumination during the course of an experiment. This is particularly an issue for coherent short wavelength sources,…
View article
Nondestructive, high-resolution, chemically specific 3D nanostructure characterization using phase-sensitive EUV imaging reflectometry Open
A new imaging technique enables nondestructive, 3D characterization of nanostructures, their composition, and interfaces.
View article
Coronal bright points Open
Coronal bright points (CBPs) are a fundamental class of solar activity. They represent a set of low-corona small-scale loops with enhanced emission in the extreme-ultraviolet and X-ray spectrum that connect magnetic flux concentrations of …