title: Frequency doubling of femtosecond pulses in walk-off-compensated N-(4-nitrophenyl)-L-prolinol.
abstract: We show how to exploit the high quadratic nonlinear coefficient of the organic crystal N-(4-nitrophenyl)-L-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.
authors: Laboratory of Photonics, Department of Signal Theory and Communications, Universitat Politecnica de Catalunya, Gran Capitan UPC-D3, Barcelona ES 08034, Spain.
authors: J P
authors: JP
authors: Torres
authors: S
authors: S
authors: Carrasco
authors: L
authors: L
authors: Torner
authors: E W
authors: EW
authors: Vanstryland