Ultrafast Mirrors

Ultrafast lasers have always been on the frontiers of science and technology, pushing the boundaries of what is possible. With the shortest pulses ever generated now down to tens of attoseconds (10 × 10 −18 s), scientists can study and probe matter on an atomic scale. In recent years, ultrafast laser sources have moved outside of the lab. Today, the extreme properties of ultrashort pulses are utilized in fields as diverse as high‐resolution microscopy, time‐of‐flight distance measurements, and micro‐machining, to name but a few.