Second harmonic generation with ultrahigh intensity femtosecond pulses has been studied experimentally and theoretically in KDP micro-powder. The second harmonic pulse intensity shows a quadratic dependence on the fundamental intensity with a noticeable spectral broadening.
© 2005 Optical Society of America
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.7090) Lasers and laser optics : Ultrafast lasers
(160.0160) Materials : Materials
(160.4330) Materials : Nonlinear optical materials
I. Aramburu, J. Fernández, R. Balda, and M. A. Illarramendi, "Second Harmonic Generation in KDP Micro-Powder by Femtosecond Pulses," in Photonic Metamaterials: From Random to Periodic, Technical Dgest (CD) (Optical Society of America, 2006), paper ThD25.
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