Observation of Backward Pulse Propagation Through a Medium with a Negative Group Velocity
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- 12 May 2006
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 312 (5775) , 895-897
- https://doi.org/10.1126/science.1124524
Abstract
The nature of pulse propagation through a material with a negative value of the group velocity has been mysterious, as simple models seem to predict that pulses will propagate “backward” through such a material. Using an erbium-doped optical fiber and measuring the time evolution of the pulse intensity at many points within the fiber, we demonstrate that the peak of the pulse does propagate backward inside the fiber, even though the energy flow is always in the forward direction.Keywords
This publication has 27 references indexed in Scilit:
- Observation of superluminal and slow light propagation in erbium-doped optical fiberEurophysics Letters, 2006
- Ultraslow Light Propagation in an Inhomogeneously Broadened Rare-Earth Ion-Doped CrystalPhysical Review Letters, 2005
- Superluminal and Slow Light Propagation in a Room-Temperature SolidScience, 2003
- Energy transport in linear dielectricsOptics Express, 2001
- Role of group velocity in tracking field energy in linear dielectricsOptics Express, 2001
- Superluminal (but causal) propagation of wave packets in transparent media with inverted atomic populationsPhysical Review A, 1993
- Observation of a spectral hole due to population oscillations in a homogeneously broadened optical absorption lineOptics Communications, 1983
- Chu and Wong RespondPhysical Review Letters, 1982
- Description of Pulse Dynamics in Lorentz Media in Terms of the Energy Velocity and Attenuation of Time-Harmonic WavesPhysical Review Letters, 1981
- The Velocities of LightAmerican Journal of Physics, 1970