Ultrafast Dynamics and Imaging at the Nanoscale using Tabletop Coherent X-ray Sources

 · Invited

Abstract

Laser-like beams at very short wavelengths (1-50nm) can be routinely generated using high harmonic up-conversion (HHG) of tabletop femtosecond lasers.[1,2] This new quantum light source is both advancing rapidly in fundamental capabilities, and is providing a powerful new tool to understand nanoscale material properties and function. This talk will discuss new capabilities for controlling the polarization, spin and orbital angular momentum of HHG beams by sculpting the driving laser beams, [3,4] and will discuss applications in nanoscale magnetic and thermal dynamics using the short wavelength and element specificity of the EUV light-matter interaction. Highlights include the discovery of a new regime of collective nanoscale heat transport,[5] and work highlighting our current incomplete understanding of dynamic mechanisms in magnetic materials.[6]
References:
[1] A. Rundquist et al., Science 280, 1412 (1998).
[2] T. Popmintchev et al., Science 336, 1287 (2012).
[3] L. Rego et al., Science 364, eaaw9486 (2019).
[4] K. Dorney et al., Nature Photonics 13, 123 (2019).
[5] KM Hoogeboom-Pot et al, PNAS 112(16), 4846-4851 (2015).
[6] P Tengdin, et al, Science Advances 4(3), 8 (2018).

*DOE Office of Basic Energy Sciences (AMOS program) (DOE)DE-FG02-99ER14982, National Science Foundation (NSF)DMR 1548924, Gordon and Betty Moore Foundation EPiQS Award GBMF4538, NSF through the JILA Physics Frontiers Center PHY-1125844, Department of Energy Office of Basic Energy Sciences X-Ray Scattering Program DE-SC0002002.

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Presenters

  • Henry Kapteyn

    • JILA, University of Colorado Boulder
    • Department of Physics and JILA, University of Colorado, Boulder
    • STROBE and JILA, University of Colorado, Boulder
    • JILA and Department of Physics, University of Colorado, Boulder
    • STROBE and JILA, University of Colorado and NIST
    • Physics, JILA/University of Colorado Boulder
    • JILA
    • University of Colorado, Boulder
    • Physics and JILA, CU Boulder
    • JILA, University of Colorado, Boulder

Authors

  • Henry Kapteyn

    • JILA, University of Colorado Boulder
    • Department of Physics and JILA, University of Colorado, Boulder
    • STROBE and JILA, University of Colorado, Boulder
    • JILA and Department of Physics, University of Colorado, Boulder
    • STROBE and JILA, University of Colorado and NIST
    • Physics, JILA/University of Colorado Boulder
    • JILA
    • University of Colorado, Boulder
    • Physics and JILA, CU Boulder
    • JILA, University of Colorado, Boulder

  • Margaret Mary Murnane

    • JILA and Department of Physics, University of Colorado, Boulder
    • Physics, JILA/University of Colorado Boulder