Femtosecond lasers

A new look at high-temperature superconductorsMethod allows direct detection of rapid fluctuations that may help to explain how high-temperature superconducting materials work.

Explained: Femtoseconds and attosecondsAs electronic and optical devices get ever faster, terms for ever-smaller increments of time are coming into wider use.

Watching electrons move at high speedNew MIT system allows femtosecond-resolution movie of electrons in a topological insulator, a promising new electronic material.

Trillion-frame-per-second videoBy using optical equipment in a totally unexpected way, MIT researchers have created an imaging system that makes light look slow.