Researchers build a particle accelerator that fits on a chip

For the first time, scientists at Stanford and SLAC have created a silicon chip that can accelerate electrons—albeit at a fraction of the velocity of that massive instrument—using an infrared laser to deliver, in less than a hair's width, the sort of energy boost that takes microwaves many feet.

Read: https://phys.org/news/2020-01-particle-chip.html