Lasers with pulse durations that are shorter than a nanosecond are called short-pulse lasers. These include picosecond lasers and femtosecond lasers. Extremely short laser pulses allow materials to be cut or processed without interfering thermal processes, while extremely high pulse peak powers enable multiphoton spectroscopy. When the femtosecond pulses are absorbed in semiconductors, terahertz radiation can be generated – this is light in the hitherto inaccessible wavelength range between infrared and millimeter waves.
The pulsed picosecond diode lasers of the EPL series are ideal excitation sources for the measurement of fluorescence lifetimes and other time-resolved measurements.
The JDSU Xcyte series lasers offer the advantages of diode-pumped solid-state lasers in quasi-CW 355nm air-cooled format.