2 papers
physics.optics2001
Signal velocity, causality, and quantum noise in superluminal light pulse propagation
A. Kuzmich, A. Dogariu, L. J. Wang +2
We consider pulse propagation in a linear anomalously dispersive medium where the group velocity exceeds the speed of light in vacuum (c) or even becomes negative. A signal velocit…
physics.optics2000
Transparent Anomalous Dispersion and Superluminal Light Pulse Propagation at a Negative Group Velocity
A. Dogariu, A. Kuzmich, L. J. Wang
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…