Study of the molybdenum solid-plasma transition by femtosecond X-ray Absorption Near Edge Spectroscopy

  • Sylvain Briand
  • , Adrïan Grolleau
  • , Fabien Brieuc
  • , Julien Gautier
  • , Vanina Recoules
  • , Kim Ta Phuoc
  • , Fabien Dorchies
  • , Ludovic Lecherbourg

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Warm dense molybdenum produced by femtosecond laser heating is investigated using femtosecond time-resolved X-ray Absorption Near Edge Spectroscopy (XANES) near the Mo L3−edge (2.52 keV). Laser absorption and X-ray absorption measurements are performed, respectively to constrain hydrodynamic macroscopic simulations, and to obtain atomic-scale information on the dynamics of electron and ion structures. Ab initio calculations are performed to interpret XANES spectra. Preliminary results indicate an extremely rapid loss of the crystalline order (100 fs-scale), accompanied by a modification of the 4d−band electronic structure. This paper highlights the impact of the sample surface quality on the data analysis and interpretation.

Original languageEnglish
Title of host publicationCompact Radiation Sources from EUV to Gamma-rays
Subtitle of host publicationDevelopment and Applications II
EditorsCarmen S. Menoni, Jaroslav Nejdl
PublisherSPIE
ISBN (Electronic)9781510688704
DOIs
Publication statusPublished - 1 Jan 2025
EventCompact Radiation Sources from EUV to Gamma-rays: Development and Applications II 2025 - Prague, Czech Republic
Duration: 9 Apr 202511 Apr 2025

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13537
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceCompact Radiation Sources from EUV to Gamma-rays: Development and Applications II 2025
Country/TerritoryCzech Republic
CityPrague
Period9/04/2511/04/25

Keywords

  • Ultrafast phenomena
  • Warm Dense Matter
  • solid-plasma transition
  • time-resolved XANES

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