Observation of the critical regime near Anderson localization of light.

@article{Strzer2006ObservationOT,
  title={Observation of the critical regime near Anderson localization of light.},
  author={Martin St{\"o}rzer and Peter Gross and Christof M. Aegerter and Georg Maret},
  journal={Physical review letters},
  year={2006},
  volume={96 6},
  pages={
          063904
        }
}
The transition from diffusive transport to localization of waves should occur for any type of classical or quantum wave in any media as long as the wavelength becomes comparable to the transport mean free path l*. The signatures of localization and those of absorption, or bound states, can, however, be similar, such that an unequivocal proof of the existence of wave localization in disordered bulk materials is still lacking. Here we present time resolved measurements of light transport through… 

Figures from this paper

Probing Anderson localization of light by weak non-linear effects

Breakdown of wave transport due to strong disorder is a universal phenomenon known as Anderson localization (AL). It occurs because of the macroscopic population of reciprocal multiple scattering

Interplay between localization and absorption in disordered waveguides.

TLDR
The results of this work justify use of SCT in analyses of experiments in localized regime, provided that absorption is not weak and open the possibility of diffusive description of wave transport in the saturation regime even when localization effects are strong.

Observation of Anderson localization of light in three dimensions.

TLDR
Using time-resolved transmission measurements, indications of Anderson localization of light in bulk three-dimensional systems are found and it is shown that in these samples the control parameter is given by the mean free path times the wavenumber as required by the Ioffe-Regel criterion.

Direct observation of Anderson localization of matter waves in a controlled disorder

TLDR
This work directly image the atomic density profiles as a function of time, and finds that weak disorder can stop the expansion and lead to the formation of a stationary, exponentially localized wavefunction—a direct signature of Anderson localization.

Probing the statistical properties of Anderson localization with quantum emitters

Wave propagation in disordered media can be strongly modified by multiple scattering and wave interference. Ultimately, the so-called Anderson-localized regime is reached when the waves become

Experimental signatures of Anderson localization of light in three dimensions

The observation of Anderson localization of light has long been hindered by the lack of clear-cut experimental signatures. Static transmission measurements for instance would show an exponential

Anderson localization as position-dependent diffusion in disordered waveguides

We show that the recently developed self-consistent theory of Anderson localization with a positiondependent diffusion coefficient is in quantitative agreement with the supersymmetry approach up to

Observation of Anderson localization in disordered nanophotonic structures

TLDR
It is shown that a stack of several-nanometer-thick layers of alternating high- and low-refractive- index material can result in the localization of light, which could provide a route to manipulating light on the nanometer scale.

Transition from light diffusion to localization in three-dimensional amorphous dielectric networks near the band edge

TLDR
It is shown that the transition to localization at the mobility edge can be described using the self-consistent theory of localization based on the concept of a position-dependent diffusion coefficient, and that transport sets off diffusive but, with increasing slab thickness, crosses over gradually to a faster decay, signaling localization.

Experimental determination of critical exponents in Anderson localisation of light

Anderson localisation predicts a phase transition in transport, where the diffuse spread of particles comes to a halt with the introduction of a critical amount of disorder. This is due to
...

References

SHOWING 1-10 OF 47 REFERENCES

Localization of light in a disordered medium

Among the unusual transport properties predicted for disordered materials is the Anderson localization phenomenon. This is a disorder-induced phase transition in the electron-transport behaviour from

Static and dynamic transport of light close to the Anderson localization transition.

TLDR
The authors' measurements of l(s) and l suggest that l is renormalized due to interference at the proximity of the localization transition, and the diffusion constant is significantly reduced in samples thinner than approximately 7l.

Localization or classical diffusion of light?

Wiersma et al. have reported near-infrared optical transmission and coherent backscattering data from strongly scattering slabs of micrometre-sized semiconductor particles. Their optical transmission

Statistical signatures of photon localization

TLDR
This work demonstrates photon localization in both weakly and strongly scattering quasi-one-dimensional dielectric samples and in periodic metallic wire meshes containing metallic scatterers, while ruling it out in three-dimensional mixtures of aluminium spheres.

Impact of weak localization in the time domain.

We find a renormalized "time-dependent diffusion coefficient," D(t), for pulsed excitation of a nominally diffusive sample by solving the Bethe-Salpeter equation with recurrent scattering. We observe

Propagation of waves through a slab near the Anderson transition: a local scaling approach

The authors use a local scaling approach to calculate the following properties near the Anderson transition: (i) the time-dependent pulse shape of the transmitted wave through a slab; (ii) the

Transport properties of random media: An energy-density CPA approach.

TLDR
This method captures the effects of the resonant scattering of the individual scatterer exactly, and by using a coated sphere as the basic scattering unit, multiple scattering contributions may be incorporated in a mean-field sense.

Photon localization in resonant media.

TLDR
Measurements of microwave transmission over the first five Mie resonances of alumina spheres randomly positioned in a waveguide show that localization occurs only in a narrow frequency window above the first resonance.

Breakdown of diffusion in dynamics of extended waves in mesoscopic media.

We report the observation of nonexponential decay of pulsed microwave transmission through quasi-one-dimensional random dielectric media signaling the breakdown of the diffusion model. The decay rate

Time-resolved pulse propagation in a strongly scattering material.

TLDR
Light transport in macroporous gallium phosphide, perhaps the strongest nonabsorbing scatterer of visible light, is studied using phase-sensitive femtosecond pulse interferometry, showing that surface properties and the effective index of refraction need to be treated carefully.