A Very Brief Guide to Femtosecond Lasers
Lasers emit light either continuously or in a train of pulses. Under the heading of ultrafast lasers falls a certain group of lasers that produce nanosecond (1 ns = 10-9 s), picosecond (1 ps = 10-12 s), or even femtosecond (1 fs = 10-15 s) pulse durations at different repetition rates. This fastest group, femtosecond lasers, … Continue reading