zeptosecond
My doctoral research involved picosecond lasers -- lasers that were the fastest in the world back in 1980, lasers so fast that the pulse of light they emitted was a few millimeters long. Now, they're building zeptosecond lasers!
My doctoral research involved picosecond lasers -- lasers that were the fastest in the world back in 1980, lasers so fast that the pulse of light they emitted was a few millimeters long. Now, they're building zeptosecond lasers!