5 papers · 1 filter
Quantum echo-enabled high harmonic generation using ultrafast electrons
Yangfan He, Chenhao Pan, Bin Zhang +1
Controlling and generating ultrafast free-electron wavepackets via laser is pivotal for photon-induced near-field electron microscopes (PINEM) and also for developing compact, cohe…
Programming Coherent and Quantum Light with a Free-Electron Wavepacket
Songyu Zhu, Yushan Zeng, Chenhao Pan +3
The pursuit of compact, programmable light sources with high coherence and spectral purity hinges on establishing a precise set of phase relationships in light-matter interactions.…
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…