Tiny accelerators get electrons up to speed using lasers
Accelerators that fit on top of a coin could find uses in medicine and science
A miniature accelerator chip fits on a 1 euro cent coin. The pictured chip contains 42 different particle accelerators of various lengths. When hit with laser light, an accelerator gives an energy boost to electrons passing through.
S. Kraus and J. Litzel/Laserphysics/FAU