Compressed ultrafast photography: world's fastest camera captures light propagation at light speed

We have developed CUP to record 70 trillion fps. CUP can record the fastest phenomenon, namely, light propagation, and can be slowed down for slower phenomena. CUP can image in 2D non-repetitive events. CUP has a prominent advantage of measuring an x, y, t scene with a single exposure, thereby allowing observation of transient events occurring on a time scale down to 10s of fs. Further, CUP is receive-only—avoiding specialized active illumination required by other single-shot ultrafast imagers. CUP can be coupled with front optics ranging from microscopes to telescopes for widespread applications in both fundamental and applied sciences.