ArticleNanophotonics (Berlin, Germany)2024
Electron-assisted probing of polaritonic light-matter states.
Article in Nanophotonics (Berlin, Germany), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Tunable BIC metamaterials with Dirac semimetals.Nanophotonics (Berlin, Germany) · 2025Review
- Tunable quantum light by modulated free electrons.Nanophotonics (Berlin, Germany) · 2025Article
- Nanophotonics out of equilibrium.Nanophotonics (Berlin, Germany) · 2024Article
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2 authors.
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Abstract
Thanks to their exceptional spatial, spectral and temporal resolution, highly-coherent free-electron beams have emerged as powerful probes for material excitations, enabling their characterization even in the quantum regime. Here, we investigate strong light-matter coupling through monochromatic and modulated electron wavepackets. In particular, we consider an archetypal target, comprising a nanophotonic cavity next to a single two-level emitter. We propose a model Hamiltonian describing the coherent interaction between the passing electron beam and the hybrid photonic-excitonic target, which is constructed using macroscopic quantum electrodynamics and fully parameterized in terms of the electromagnetic dyadic Green's function. Using this framework, we first describe electron-energy-loss and cathodoluminescence spectroscopies, and photon-induced near-field electron emission microscopy. Finally, we show the power of modulated electrons beams as quantum tools for the manipulation of polaritonic targets presenting a complex energy landscape of excitations.
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