Extreme ultraviolet transient gratings: A tool for nanoscale photoacoustics

L. Foglia, R. Mincigrucci, A. A. Maznev, G. Baldi, F. Capotondi, F. Caporaletti, R. Comin, D. De Angelis, R. A. Duncan, D. Fainozzi, G. Kurdi, J. Li, A. Martinelli, C. Masciovecchio, G. Monaco, Alessandra Milloch, K. A. Nelson, C. A. Occhialini, M. Pancaldi, E. PedersoliJ. S. Pelli-Cresi, A. Simoncig, F. Travasso, B. Wehinger, M. Zanatta, F. Bencivenga

Research output: Contribution to journalArticle

Abstract

Collective lattice dynamics determine essential aspects of condensed matter, such as elastic and thermal prop-erties. These exhibit strong dependence on the length-scale, reflecting the marked wavevector dependence of lattice excitations. The extreme ultraviolet transient grating (EUV TG) approach has demonstrated the potential of accessing a wavevector range corresponding to the 10s of nm length-scale, representing a spatial scale of the highest relevance for fundamental physics and forefront technology, previously inaccessible by optical TG and other inelastic scattering methods. In this manuscript we report on the capabilities of this technique in the context of probing thermoelastic properties of matter, both in the bulk and at the surface, as well as discussing future developments and practical considerations.
Original languageEnglish
Pages (from-to)N/A-N/A
JournalPhotoacoustics
DOIs
Publication statusPublished - 2023
Externally publishedYes

Keywords

  • Extreme ultraviolet
  • Free electron lasers
  • Nanoscale
  • Photoacoustics
  • Phototermal
  • Transient grating

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