A simple extension of a commercial laser system permits the generation of intense femtosecond infrared pulses near 3 μm by optical parametric generation and amplification at kilohertz repetition rates. Pulse durations of a few hundred femtoseconds and pulse energies of tens of microjoules can be routinely produced, thus permitting nonlinear optical studies of molecular vibrations.
© 1997 Optical Society of America
Uli Emmerichs, Sander Woutersen, and Huib J. Bakker, "Generation of intense femtosecond optical pulses near 3 μm with a kilohertz repetition rate," J. Opt. Soc. Am. B 14, 1480-1483 (1997)