Characterization of femtosecond pulses via transverse second-harmonic generation in random nonlinear media
نویسندگان
چکیده
We study, both experimentally and theoretically, the process of second-harmonic generation by two noncollinear beams in ferroelectric crystals with a disordered distribution of ferroelectric domains. We show that this parametric process results in generation of second-harmonic wave in the direction transverse to the propagation of the fundamental beam. We demonstrate how this effect can be used for the femtosecond pulse characterization enabling the estimation of both width and chirp of the pulse. PACS 42.65.-k · 42.65.Ky · 42.25.Fx
منابع مشابه
Transverse second - harmonic generation from disordered nonlinear crystals ∗
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