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Arbitrary-order nonlinear contribution to self-steepening

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Published in Optics Letters. 2010, vol. 35, no. 16, p. 2795
Abstract On the basis of the recently published generalized Miller formulas, we derive the spectral dependence of the contribution of arbitrary-order nonlinear indices to the group-velocity index. We show that in the context of laser filamentation in gases, all experimentally accessible orders (up to the ninth-order nonlinear susceptibility χ(9) in air and χ(11) in argon) have contributions of alternative signs and similar magnitudes. Moreover, we show both analytically and numerically that the dispersion term of the nonlinear indices must be considered when computing the intensity-dependent group velocity.
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ISE Climat
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KASPARIAN, Jérôme, BEJOT, Pierre Olivier, WOLF, Jean-Pierre. Arbitrary-order nonlinear contribution to self-steepening. In: Optics Letters, 2010, vol. 35, n° 16, p. 2795. https://archive-ouverte.unige.ch/unige:37121

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Deposited on : 2014-06-03

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