Transparent Anomalous Dispersion and Superluminal Light Pulse Propagation at a Negative Group Velocity

Details Transparent Anomalous Dispersion and Superluminal Light Pulse Propagation at a Negative Group Velocity Transparent Anomalous Dispersion and Superluminal Light Pulse Propagation at a Negative Group Velocity

2000-12-28

arxiv.org/abs/physics/0012060v1

Physics

Optics

12 journal pages, 9 figures

Scientific paper

10.1103/PhysRevA.63.053806

Anomalous dispersion cannot occur in a transparent passive medium where electromagnetic radiation is being absorbed at all frequencies, as pointed out by Landau and Lifshitz. Here we show, both theoretically and experimentally, that transparent linear anomalous dispersion can occur when a gain doublet is present. Therefore, a superluminal light pulse propagation can be observed even at a negative group velocity through a transparent medium with almost no pulse distortion. Consequently, a {\it negative transit time} is experimentally observed resulting in the peak of the incident light pulse to exit the medium even before entering it. This counterintuitive effect is a direct result of the {\it rephasing} process owing to the wave nature of light and is not at odds with either causality or Einstein's theory of special relativity.

Affiliated with

Also associated with

No associations

Rating

Transparent Anomalous Dispersion and Superluminal Light Pulse Propagation at a Negative Group Velocity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Transparent Anomalous Dispersion and Superluminal Light Pulse Propagation at a Negative Group Velocity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transparent Anomalous Dispersion and Superluminal Light Pulse Propagation at a Negative Group Velocity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-233636