Nanoscale Nonlinear Spectroscopy with Electron Beams

@article{Konevcna2019NanoscaleNS,
  title={Nanoscale Nonlinear Spectroscopy with Electron Beams},
  author={Andrea Konevcn'a and Valerio Di Giulio and Vahagn Mkhitaryan and C. Ropers and Francisco Javier Garc{\'i}a de Abajo},
  journal={arXiv: Mesoscale and Nanoscale Physics},
  year={2019}
}
We theoretically demonstrate the ability of electron beams to probe the nonlinear photonic response with nanometer spatial resolution, well beyond the capabilities of existing optical techniques. Although the interaction of electron beams with photonic modes is generally weak, the use of optical pumping produces stimulated electron-light interactions that can reach order-unity probabilities in photon-induded near field electron microscopy (PINEM). Here, we demonstrate that PINEM can locally and… 

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