ISSN:
1432-0649
Keywords:
42.10
;
42.60.E
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract 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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01828944
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