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Optics Letters

Optics Letters


  • Vol. 23, Iss. 7 — Apr. 1, 1998
  • pp: 534–536

Breakdown of the slowly varying envelope approximation in the self-focusing of ultrashort pulses

Jinendra K. Ranka and Alexander L. Gaeta  »View Author Affiliations

Optics Letters, Vol. 23, Issue 7, pp. 534-536 (1998)

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We show theoretically and experimentally that with ultrashort pulses much longer than a single optical cycle, the effects of self-steepening and space–time focusing are important for describing the nonlinear dynamics of self-focusing. Asymmetric temporal splitting of the pulse envelope is observed in which the relative magnitudes of the peaks are reversed as the input power is increased.

© 1998 Optical Society ofAmerica

OCIS Codes
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(190.5940) Nonlinear optics : Self-action effects
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(320.2250) Ultrafast optics : Femtosecond phenomena

Jinendra K. Ranka and Alexander L. Gaeta, "Breakdown of the slowly varying envelope approximation in the self-focusing of ultrashort pulses," Opt. Lett. 23, 534-536 (1998)

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