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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 22 — Nov. 15, 2012
  • pp: 4612–4614

Higher-order Kerr effect and harmonic cascading in gases

Morten Bache, Falk Eilenberger, and Stefano Minardi  »View Author Affiliations


Optics Letters, Vol. 37, Issue 22, pp. 4612-4614 (2012)
http://dx.doi.org/10.1364/OL.37.004612


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Abstract

The higher-order Kerr effect (HOKE) has recently been advocated to explain measurements of the saturation of the nonlinear refractive index in gases. Here we show that cascaded third-harmonic generation results in an effective fifth-order nonlinearity that is negative and significant. Higher-order harmonic cascading will also occur from the HOKE, and the cascading contributions may significantly modify the observed nonlinear index change. At lower wavelengths, cascading increases the HOKE saturation intensity, while for longer wavelengths cascading will decrease the HOKE saturation intensity.

© 2012 Optical Society of America

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.3270) Nonlinear optics : Kerr effect
(190.4400) Nonlinear optics : Nonlinear optics, materials
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

ToC Category:
Nonlinear Optics

History
Original Manuscript: September 7, 2012
Revised Manuscript: October 2, 2012
Manuscript Accepted: October 3, 2012
Published: November 6, 2012

Citation
Morten Bache, Falk Eilenberger, and Stefano Minardi, "Higher-order Kerr effect and harmonic cascading in gases," Opt. Lett. 37, 4612-4614 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-22-4612

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