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  • Invited talk
  • IM1.002-invited

Coupling electron microscopes with lasers: ultrafast charge dynamics and the laser-assisted nanoscale Kirkendall effect

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aurum

Session

Progress in instrumentation and ultrafast EM

Thema

  • IM 1: Progress in instrumentation and ultrafast EM

Mitwirkende

Renske M. van der Veen (Berlin / DE)

Abstract

Abstract text (incl. figure legends and references)

While transmission electron microscopy (TEM) has evolved into a powerful tool for atomic-scale structure determination, temporal resolution in TEM has received far less attention, with detector and beam-current limits being on the order of microseconds. In this talk, I will describe how time resolution limits can be pushed by coupling ultrafast pulsed lasers to otherwise conventional TEMs. After briefly describing the experimental setup, I will present some of our recent work on transient lensing from photoemitted electron clouds on the picosecond time scale. I will also show how lasers coupled to TEMs can be used to induce nanoscale structural changes in nanomaterials on much slower time scales.

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