Applied Physics B

, Volume 63, Issue 5, pp 481–484 | Cite as

Acceleration of femtosecond pulses to superluminal velocities by Gouy phase shift

  • Z. L. Horváth
  • J. Vinkó
  • Zs. Bor
  • D. von der Linde
Regular Papers


The phase and the group velocities are calculated in a three-dimensional neighbourhood of the focus of an aberration-free lens illuminated by a spatially Gaussian beam. The Gouy phase shift caused by the diffraction results in superluminal pulse propagation on the optical axis within the Rayleigh range.


42.10 42.60.E 


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Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • Z. L. Horváth
    • 1
  • J. Vinkó
    • 2
  • Zs. Bor
    • 1
  • D. von der Linde
    • 3
  1. 1.Department of Optics and Quantum ElectronicsJATE UniversitySzegedHungary
  2. 2.Research Group on Laser Physics of the Hungarian Academy of SciencesSzegedHungary
  3. 3.Institut für Laser- und PlasmaphysikUniversität EssenEssenGermany

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