The Time-Frequency Laboratory (LTF) of the University of Neuchâtel has just achieved a new performance in the field of ultrafast lasers. The device transforms an infrared laser into a stroboscope, each pulse lasting only 27 femtoseconds (fs), i.e. 27 billionths of a microsecond, but with a power comparable to that of a nuclear power plant! This feat is at the heart of a doctoral thesis that has just been defended at the UniNE.