ACCELERATION OF FEMTOSECOND PULSES TO SUPERLUMINAL VELOCITIES BY GOUYPHASE-SHIFT

Authors
HORVATH ZL VINKO J BOS Z VONDERLINDE D
Citation
Zl. Horvath et al., ACCELERATION OF FEMTOSECOND PULSES TO SUPERLUMINAL VELOCITIES BY GOUYPHASE-SHIFT, Applied physics. B, Lasers and optics, 63(5), 1996, pp. 481-484
Citations number
21
Categorie Soggetti
Physics, Applied",Optics
Journal title
Applied physics. B, Lasers and optics → ACNP
ISSN journal
09462171
Volume
63
Issue
5
Year of publication
1996
Pages
481 - 484
Database
ISI
SICI code
0946-2171(1996)63:5<481:AOFPTS>2.0.ZU;2-#
Abstract
The phase and the group velocities are calculated in a three-dimension al neighbourhood of the focus of an aberration-free lens illuminated b y a spatially Gaussian beam. The Gouy phase shift caused by the diffra ction results in superluminal pulse propagation on the optical axis wi thin the Rayleigh range.