Apparent superluminal propagation of a laser pulse in a dispersive medium - art. no. 026504

Authors
Sprangle, P Penano, JR Hafizi, B
Citation
P. Sprangle et al., Apparent superluminal propagation of a laser pulse in a dispersive medium - art. no. 026504, PHYS REV E, 6402(2), 2001, pp. 6504
Citations number
13
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW E
ISSN journal
1063651X → ACNP
Volume
6402
Issue
2
Year of publication
2001
Part
2
Database
ISI
SICI code
1063-651X(200108)6402:2<6504:ASPOAL>2.0.ZU;2-Q
Abstract
The distortion of a laser pulse propagating in a dispersive gain/absorptive medium is analyzed. The relationship between the distortion of the pulse a nd superluminal propagation is discussed. We present an analytical approach based on the laser envelope equation that is readily applicable to arbitra ry input pulse shapes. This analysis is used to interpret recent experiment s that claim to have observed distortionless superluminal laser pulse propa gation.