A picosecond (abbreviated as ps) is a unit of time in the International System of Units (SI) equal to 10−12 or 1⁄1 000 000 000 000 (one trillionth) of a second.
Multiple technical approaches achieve imaging within single-digit picoseconds: for example, the streak camera or intensified CCD (ICCD) cameras are able to picture the motion of light.
[1][2] One picosecond is equal to 1000 femtoseconds, or 1/1000 nanoseconds.
Because the next SI unit is 1000 times larger, measurements of 10−11 and 10−10 second are typically expressed as tens or hundreds of picoseconds.
Some notable measurements in this range include: