Second harmonic pulse distortion by imperfect phase matching

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2000-02-01
Autores
Mendonca, C. R.
Misoguti, L.
Zilio, S. C.
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We report on the distortion of second harmonic pulses generated in non-phase-matched conditions by highly efficient nonlinear crystals. the effect depends strongly on the temporal and spatial profiles of the incident fundamental pulse and on the phase mismatch. A Q-switched and mode-locked Nd:YAG laser was employed to demonstrate several temporal and spatial shapes for the second harmonic pulse train produced by a KTP crystal. (C) 2000 Elsevier Science B.V. All rights reserved.
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Optics Communications. Amsterdam: Elsevier B.V., v. 174, n. 5-6, p. 481-486, 2000.