Abstract

We describe the implementation and detailed characterization of a laser-triggered field-emitter electron source integrated into a modified transmission electron microscope. Highly coherent electron pulses enable high resolution ultrafast electron imaging and diffraction.

Highlights

  • In recent years, ultrafast physics has revealed a detailed and rich picture of the fundamental interactions between the electron, spin and lattice subsystems in spatially homogeneous condensed matter

  • We describe the implementation and detailed characterization of a laser-triggered field-emitter electron source integrated into a modified transmission electron microscope

  • Ultrafast Transmission Electron Microscopy (UTEM) is a promising approach, in which femtosecond electron pulses are employed to stroboscopically probe ultrafast nanoscale dynamics in a laser-pump/electron-probe scheme (Fig. 1a)

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Summary

Introduction

Ultrafast physics has revealed a detailed and rich picture of the fundamental interactions between the electron, spin and lattice subsystems in spatially homogeneous condensed matter. We describe the implementation and detailed characterization of a laser-triggered field-emitter electron source integrated into a modified transmission electron microscope. Coherent electron pulses enable high resolution ultrafast electron imaging and diffraction.

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