Two‐Photon Fluorescence Detects Ultrashort Pulses
DOI: 10.1063/1.3034484
Light pulses shorter than picoseconds can now be directly displayed and measured, according to a group of Bell Telephone Laboratories scientists. Several techniques for generation and measurement of ultrashort, intense light pulses have been known for a number of months. But until now, the resolution limit of pulse‐duration measurements has been about