Simultaneous Negative Phase and Group Velocity of Light in a Metamaterial

@article{Dolling2006SimultaneousNP,
  title={Simultaneous Negative Phase and Group Velocity of Light in a Metamaterial},
  author={Gunnar Dolling and Christian Enkrich and Martin Wegener and Costas M. Soukoulis and Stefan Linden},
  journal={Science},
  year={2006},
  volume={312},
  pages={892 - 894}
}
We investigated the propagation of femtosecond laser pulses through a metamaterial that has a negative index of refraction for wavelengths around 1.5 micrometers. From the interference fringes of a Michelson interferometer with and without the sample, we directly inferred the phase time delay. From the pulse-envelope shift, we determined the group time delay. In a spectral region, phase and group velocity are negative simultaneously. This means that both the carrier wave and the pulse envelope… 
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References

SHOWING 1-10 OF 15 REFERENCES
Negative index of refraction in optical metamaterials.
A double-periodic array of pairs of parallel gold nanorods is shown to have a negative refractive index in the optical range. Such behavior results from the plasmon resonance in the pairs of nanorods…
Gain-assisted superluminal light propagation
TLDR
Gain-assisted linear anomalous dispersion is used to demonstrate superluminal light propagation in atomic caesium gas and is observed to be a direct consequence of classical interference between its different frequency components in an anomalously dispersion region.
Experimental Verification of a Negative Index of Refraction
TLDR
These experiments directly confirm the predictions of Maxwell's equations that n is given by the negative square root ofɛ·μ for the frequencies where both the permittivity and the permeability are negative.
Experimental demonstration of near-infrared negative-index metamaterials.
TLDR
The first fabrication and experimental verification of a transversely structured metal-dielectric-metal multilayer exhibiting a negative refractive index around 2 microm is reported.
Linear Pulse Propagation in an Absorbing Medium
The pulse velocity in the linear regime in samples of GaP: N with a laser tuned to the bound $A$-exciton line is measured with use of a picosecond time-of-flight technique. The pulse is seen to…
Magnetic Response of Metamaterials at 100 Terahertz
TLDR
The measured optical spectra of the nanofabricated gold structures come very close to the theoretical expectations and additional numerical simulations show that the structures exhibit a frequency range with negative permeability for a beam configuration in which the magnetic field couples to the LC resonance.
Superluminal and Slow Light Propagation in a Room-Temperature Solid
TLDR
It is observed that ions in mirror sites are inversely saturable and cause superluminal light propagation, whereas ions in inversion sites experience conventional saturable absorption and produce slow light.
The speed of information in a ‘fast-light’ optical medium
TLDR
It is found that the time to detect information propagating through a fast-light medium is slightly longer than the time required to detect the same information travelling through a vacuum, even though υg in the medium vastly exceeds c.
Cut-wire pairs and plate pairs as magnetic atoms for optical metamaterials.
TLDR
A more pronounced optical response is obtained for arrays of plate pairs, a geometry that also eliminates the undesirable polarization anisotropy of the cut-wire pairs, revealing negative magnetic permeability in the range of telecommunications wavelengths.
Nanofabricated media with negative permeability at visible frequencies
TLDR
A nanofabricated medium consisting of electromagnetically coupled pairs of gold dots with geometry carefully designed at a 10-nm level exhibits a strong magnetic response at visible-light frequencies, including a band with negative µ.
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