The laser zaps the axon with quadrillions of pulses of light per second, creating a spot on the cell that is as hot as the sun. (The beam's tight focus and short duration prevent heat from building up in surrounding cells.) The axon evaporates off [inset] as a plasma of electrons and ions, leaving behind scant debris.

Research showcased in a national Popular Science Magazine feature on innovative surgery techniques entitled, "The Brain Surgeon’s New Toolbox," September 2007.