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  • Vol. 29, Iss. 9 — May. 1, 2004
  • pp: 995–997

Role of dispersion in multiple-collapse dynamics

K. D. Moll and Alexander L. Gaeta  »View Author Affiliations


Optics Letters, Vol. 29, Issue 9, pp. 995-997 (2004)
http://dx.doi.org/10.1364/OL.29.000995


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Abstract

The multiple-collapse dynamics of ultrashort pulses along the propagation direction are investigated under conditions of both normal and anomalous group-velocity dispersion (GVD). In the anomalous-GVD regime we find that collapse events can occur at locations in the medium many diffraction lengths beyond the initial collapse point, in contrast with the normal-GVD regime in which multiple collapse occurs within a diffraction length. Numerical simulations of a modified nonlinear envelope equation are found to be in good qualitative agreement with the observed lengths of the filaments.

© 2004 Optical Society of America

OCIS Codes
(190.3270) Nonlinear optics : Kerr effect
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(260.5950) Physical optics : Self-focusing
(320.2250) Ultrafast optics : Femtosecond phenomena

Citation
K. D. Moll and Alexander L. Gaeta, "Role of dispersion in multiple-collapse dynamics," Opt. Lett. 29, 995-997 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-9-995


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