4 papers · 1 filter
Ultrafast Stern-Gerlach and Anomalous Bragg Diffraction Regimes of Low-energy Free Electron Interaction with Light
Yongcheng Ding, Zirui Zhao, Bin Zhang +3
Recent advances in photon-induced near-field electron microscopy (PINEM) have significantly impacted allied disciplines such as laser-driven accelerators and free electron radiatio…
Indirect multiphoton scattering between light and bulk plasmons via ultrafast free electrons
Ruoyu Chen, Jun Li, Qiaofei Pan +6
Efficient coupling between light and bulk plasmons (BPs) remains a central challenge because of their inherent mode mismatch, limited penetration depth, and pronounced resonant ene…
Generating and Weaving Topological Event Wavepackets in Photonic Spacetime Crystals with Fully Energy-Momentum Gapped
Liang Zhang, Zirui Zhao, Qiaofei Pan +3
We propose a novel type of topological excitation topological event wavepackets (TEWs) emerging in photonic spacetime crystals (STCs) with spacetime modulated dielectric constants.…
Light-induced Pairing Instability of Ultrafast Electron Beams with Space Charge Interactions
Hao Geng, Qiaofei Pan, Jian Kang +1
Ultrafast electron beams are essential for many applications, yet space-charge interactions in high-intensity beams lead to energy dissipation, coherence loss, and pulse broadening…