Advancements in Miniature Particle Accelerators: Coherent Nanophotonic Electron Acceleration

Researchers have developed a nanophotonic electron accelerator that combines particle acceleration and transverse beam confinement, enabling the acceleration and guidance of electrons over a distance of 500 μm in a 225-nm-wide channel. The accelerator achieved a maximum coherent energy gain of 12.3 keV, representing a 43% increase in energy. This breakthrough paves the way for the development of nanophotonic accelerators that offer high acceleration gradients and minimal size requirements, with potential applications in medicine, industry, materials research, and science.