Optical coherence transfer mediated by free electrons
- URL: http://arxiv.org/abs/2010.14948v2
- Date: Tue, 10 Nov 2020 22:07:50 GMT
- Title: Optical coherence transfer mediated by free electrons
- Authors: Ofer Kfir, Valerio Di Giulio, F. Javier Garc\'ia de Abajo and Claus
Ropers
- Abstract summary: We consider the quantum-optical correlations of CL from electrons that are previously shaped by a laser field.
The main prediction here is the presence of phase correlations between the emitted CL field and the electron-modulating laser.
Since electron beams can be focused to below one Angstrom, their ability to transfer optical coherence could enable ultra precise excitation, manipulation, and spectroscopy of nanoscale quantum systems.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We investigate theoretically the quantum-coherence properties of the
cathodoluminescence (CL) emission produced by a temporally modulated electron
beam. Specifically, we consider the quantum-optical correlations of CL from
electrons that are previously shaped by a laser field. The main prediction here
is the presence of phase correlations between the emitted CL field and the
electron-modulating laser, even though the emission intensity and spectral
profile are independent of the electron state. In addition, the coherence of
the CL field extends to harmonics of the laser frequency. Since electron beams
can be focused to below one Angstrom, their ability to transfer optical
coherence could enable ultra precise excitation, manipulation, and spectroscopy
of nanoscale quantum systems.
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