Optical excitations with free electrons: Challenges and opportunities
DIPC Seminars
- Speaker
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Javier García de Abajo, ICFO-Institut de Ciencies Fotoniques, Spain
- When
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2021/07/15
14:00 - Place
- Online Seminar, Donostia International Physics Center
- Add to calendar
-
iCal
The control over the longitudinal and transverse properties of electron beams
has recently experienced a substantial boost because of the combination of new
advances in electron microscope instrumentation, particularly in combination
with ultrafast light pulses and the ability to synthesize femtosecond electron
wave packets. In this presentation, we overview key concepts describing the
associated interactions between free electrons, light, and photonic
nanostructures, making emphasis on quantum aspects and exploring several
remaining challenges and emerging opportunities. We further discuss potential
applications in noninvasive spectroscopy and microscopy, the possibility of
sampling the nonlinear optical response at the nanoscale, the manipulation of
the density matrices associated with free electrons and optical sample modes,
optical modulation of electron beams, and improved schemes for electron-driven
light emission over a wide range of photon energies.
Host: Enrique Ortega
ZOOM: