We show how to exploit the high quadratic nonlinear coefficient of the organic crystal <i>N</i>-(4-nitrophenyl)-<i>L</i>-prolinol for generation and parametric mixing of ultrashort pulses by use of tilted-pulse techniques. The effective crystal length for subpicosecond operation is shown to be enhanced from tens of micrometers to tens of millimeters. Efficient frequency doubling of 100-fs pulses is predicted in walk-off-compensated geometries with peak intensities of a few megawatts per square centimeter.
© 2000 Optical Society of America
(160.4890) Materials : Organic materials
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(320.2250) Ultrafast optics : Femtosecond phenomena
Juan P. Torres, Silvia Carrasco, Lluis Torner, and Eric W. VanStryland, "Frequency doubling of femtosecond pulses in walk-off-compensated N-(4-nitrophenyl)-L-prolinol," Opt. Lett. 25, 1735-1737 (2000)