Articles with "xuv" as a keyword



Carrier-Specific Hot Phonon Bottleneck in CH3NH3PbI3 Revealed by Femtosecond XUV Absorption.

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Published in 2021 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.1c07817

Abstract: Femtosecond carrier cooling in the organohalide perovskite semiconductor CH3NH3PbI3 is measured using extreme ultraviolet (XUV) and optical transient absorption spectroscopy. XUV absorption between 44 and 58 eV measures transitions from the I 4d core to… read more here.

Keywords: phonon bottleneck; hot phonon; carrier; xuv absorption ... See more keywords

Enhancing the efficiency of high-order harmonics with two-color non-collinear wave mixing in silica

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Published in 2024 at "Nature Communications"

DOI: 10.1038/s41467-024-52774-9

Abstract: The emission of high-order harmonics from solids under intense laser-pulse irradiation is revolutionizing our understanding of strong-field solid-light interactions, while simultaneously opening avenues towards novel, all-solid, coherent, short-wavelength table-top sources with tailored emission profiles and… read more here.

Keywords: xuv; harmonics; wave mixing; high order ... See more keywords

Sub-20-fs UV-XUV beamline for ultrafast molecular spectroscopy

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Published in 2024 at "Scientific Reports"

DOI: 10.1038/s41598-024-77841-5

Abstract: We present an ultraviolet (UV) - extreme-ultraviolet (XUV) pump-probe beamline with applications in ultrafast time-resolved photoelectron spectroscopy. The UV pump pulses, tuneable between 255 and 285 nm and with µJ-level energy, are generated by frequency… read more here.

Keywords: spectroscopy; xuv; sub xuv; xuv beamline ... See more keywords

Photon acceleration of high-intensity vector vortex beams into the extreme ultraviolet

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Published in 2024 at "Communications Physics"

DOI: 10.1038/s42005-025-02163-5

Abstract: Extreme ultraviolet (XUV) light sources allow for the probing of bound electron dynamics on attosecond scales, interrogation of high-energy-density matter, and access to novel regimes of strong-field quantum electrodynamics. Despite the importance of these applications,… read more here.

Keywords: vector; intensity; xuv; extreme ultraviolet ... See more keywords
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Autoionization dynamics of helium nanodroplets resonantly excited by intense XUV laser pulses

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Published in 2020 at "New Journal of Physics"

DOI: 10.1088/1367-2630/ab9554

Abstract: The ionization dynamics of helium droplets in a wide size range from 220 to 10^6 He atoms irradiated with intense femtosecond extreme ultraviolet (XUV) pulses of 10^9 {\div} 10^{12} W/cm2 power density is investigated in… read more here.

Keywords: autoionization dynamics; autoionization; dynamics helium; xuv ... See more keywords

Electron thermalization and ion acceleration in XUV-produced plasma from nanoparticles in He gas environment

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Published in 2025 at "New Journal of Physics"

DOI: 10.1088/1367-2630/ada575

Abstract: We use intense femtosecond extreme ultraviolet (XUV) pulses with a photon energy of 92 eV from the FLASH free electron laser to irradiate substrate-free CsCl nanoparticles surrounded by a He gas with a number density… read more here.

Keywords: gas environment; xuv; gas; nanoparticle ... See more keywords
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Influence of the Sun-like magnetic cycle on exoplanetary atmospheric escape

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Published in 2020 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staa1815

Abstract: Stellar high-energy radiation (X-ray and extreme ultraviolet, XUV) drives atmospheric escape in close-in exoplanets. Given that stellar irradiation depends on the stellar magnetism and that stars have magnetic cycles, we investigate how cycles affect the… read more here.

Keywords: escape; cycle; atmospheric escape; xuv ... See more keywords

The XUV-driven escape of the planets around TOI-431 & ν2 Lupi

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Published in 2024 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stae1054

Abstract: One of the leading mechanisms invoked to explain the existence of the radius valley is atmospheric mass loss driven by X-ray and extreme-ultraviolet irradiation, with this process stripping the primordial envelopes of young, small planets… read more here.

Keywords: xuv driven; toi 431; xuv; 431 lupi ... See more keywords

Extended quantitative rescattering model for simulating high-order harmonic streaking spectra by synchronization of an intense IR laser and a time-delayed attosecond XUV pulse

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Published in 2021 at "Physical Review A"

DOI: 10.1103/physreva.104.033102

Abstract: We theoretically investigate the modulated high-harmonic generation (HHG) driven by an intense few-cycle infrared (IR) laser field and a weak extreme-ultraviolet (XUV) pulse at a delayed time. We establish an extended quantitative rescattering (EQRS) model… read more here.

Keywords: xuv pulse; time; streaking spectra; model ... See more keywords

Excited-state vibronic wave-packet dynamics in H 2 probed by XUV transient four-wave mixing

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Published in 2018 at "Physical Review A"

DOI: 10.1103/physreva.97.023401

Abstract: Author(s): Cao, W; Warrick, ER; Fidler, A; Leone, SR; Neumark, DM | Abstract: © 2018 American Physical Society. The complex behavior of a molecular wave packet initiated by an extreme ultraviolet (XUV) pulse is investigated… read more here.

Keywords: wave packet; energy; wave; wave mixing ... See more keywords

Measurement of femtosecond incoherent XUV pulses using shot-noise-driven fluctuations in plasma betatron sources.

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Published in 2025 at "Physical review. E"

DOI: 10.1103/physreve.111.l013201

Abstract: The duration of incoherent XUV pulses down to the femtoseconds (fs) can be retrieved through a statistical analysis of the modulations on the observed radiation spectrum. Uncorrelated shot-noise fluctuations in the pulse temporal profile result… read more here.

Keywords: shot noise; xuv pulses; betatron; xuv ... See more keywords