Planar second-harmonic generation with noncollinear pumps in disordered media.

abstract

• We study experimentally the process of the second harmonic generation by two noncollinear beams in quadratic nonlinear crystals with a disordered structure of ferroelectric domains. We show that the second-harmonic radiation is emitted in the form of two cones as well as in a plane representing the cross-correlation of the two fundamental pulses. We demonstrate the implementation of this parametric process for characterisation of femtosecond pulses, enabling the estimation of pulse width, chirp, and front tilt. This is achieved through monitoring the evolution of the autocorrelation trace inside the nonlinear crystal.

authors

• Krolikowski, Wieslaw

published proceedings

• Opt Express

author list (cited authors)

• Roppo, V., Dumay, D., Trull, J., Cojocaru, C., Saltiel, S. M., Staliunas, K., ... Kivshar, Y. S.

citation count

• 31

complete list of authors

• Roppo, Vito||Dumay, David||Trull, Jose||Cojocaru, Crina||Saltiel, Solomon M||Staliunas, Kestutis||Vilaseca, Ramon||Neshev, Dragomir N||Krolikowski, Wieslaw||Kivshar, Yuri S

publication date

• September 2008

publisher

• Optica Publishing Group  Publisher

published in

• Optics Express  Journal

keywords

• Computer Simulation
• Lasers
• Light
• Models, Theoretical
• Refractometry
• Scattering, Radiation

PubMed Central ID

• 18773029

Digital Object Identifier (DOI)

• 10.1364/oe.16.014192

start page

• 14192

end page

• 14199

volume

• 16

issue

• 18

URL

• http://dx.doi.org/10.1364/oe.16.014192