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Longitudinal and transverse modulation of electron wave function with light, and its application to electron microscopy

Time: Thu 2021-11-25 15.00 - 15.45

Location: FB52 and Zoom (link to zoom-meeting below the abstract)

Lecturer: Dr. Ivan Madan, Ecole Polytechnique Fédérale de Lausanne (EPFL), Switzerland

Abstract:

Conventional electron microscopy operates with flat electron wave fronts. Employing attenuative or electrostatic phase plates allows transversally modulating the wave front, enhancing cross-sections of particular scattering channels. Utilization of light from coherent ultrafast sources allows modulating electrons phase both transversally and longitudinally. This results in a plethora of phenomena, as well as conceptually new techniques such as non-local electron holography of light fields and generation of ultrafast electron vortex beams. In this talk I will present recent developments as well as current activities and perspectives in this domain.

Join the seminar by Zoom

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Last changed: Nov 17, 2021