A clarification is missing concerning the high order Kerr non-linearities deduced from our experimental data published in [Opt. Express 17, 13429-13434 (2009)]. Here, we rectify this omission by making explicit the distinction between cross-Kerr and Kerr effects, and by extrapolating the value of the nonlinear refractive index for the last effect. Since the occurrence of sign inversion in the Kerr effect is not affected, the overall report in [Opt. Express 17, 13429-13434] remains valid.

© 2010 Optical Society of America

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  1. V. Loriot, E. Hertz, O. Faucher, and B. Lavorel, “Measurement of high order Kerr refractive index of major air components,” Opt. Express 17, 13429–13434 (2009), http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-16-13429.
    [Crossref] [PubMed]
  2. R. W. Boyd, Nonlinear Optics, Second edition, (Academic Press, 2003).

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Figures (1)

Fig. 1.
Fig. 1.

Nonlinear refractive index variation of air constituents versus intensity at room temperature and 1 atm. (a) N2, (b) O2, (c) Ar, and (d) air.

Tables (1)

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Table 1. Measured coefficients of the nonlinear refractive index expansion of nitrogen, oxygen, argon, and air with I inv the intensity leading to n Kerr = 0. The uncertainty corresponds to two standard deviations of the fitted values over a set of experimental records.