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Quantum effects in the interaction of low-energy electrons with light.
- Source :
-
Science Advances . 6/21/2024, Vol. 10 Issue 25, p1-10. 10p. - Publication Year :
- 2024
-
Abstract
- The interaction between free electrons and optical fields constitutes a unique platform to investigate ultrafast processes in matter and explore fundamental quantum phenomena. Specifically, optically modulated electrons in ultrafast electron microscopy act as noninvasive probes that push space-time-energy resolution to the picometer-attosecond-microelectronvolt range. Electron energies well above the involved photon energies are commonly used, rendering a low electron-light coupling and, thus, only providing limited access to the wealth of quantum nonlinear phenomena underlying the dynamical response of nanostructures. Here, we theoretically investigate electron-light interactions between photons and electrons of comparable energies, revealing quantum and recoil effects that include a nonvanishing coupling of surface-scattered electrons to light plane waves, inelastic electron backscattering from confined optical fields, and strong electron-light coupling under grazing electron diffraction by an illuminated crystal surface. Our exploration of electron-light-matter interactions holds potential for applications in ultrafast electron microscopy. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 23752548
- Volume :
- 10
- Issue :
- 25
- Database :
- Academic Search Index
- Journal :
- Science Advances
- Publication Type :
- Academic Journal
- Accession number :
- 178172545
- Full Text :
- https://doi.org/10.1126/sciadv.adp4096