Abstract: We investigate the transverse second-harmonic generation in as grown strontium barium niobate (SBN) crystals with a random structure of anti-parallel ferroelectric domains. We consider both, single and counter-propagating pulse geometries. We investigate polarization properties of the second harmonic signal and discuss applications of this process for short pulses characterization.

Keywords: second-harmonic generation; disordered nonlinear media; pulse duration measurement; nonlinear scattering;; wave-guides; fluorescence; scattering; niobate; pulses

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