Experimental signatures of Anderson localization of light in three dimensions

Aegerter, Christof M.; Störzer, Martin; Bührer, W.; Fiebig, Susanne; Maret, Georg

doi:10.1080/09500340701627206

Cited by 5 publications

(5 citation statements)

References 30 publications

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“…This controversial discussion illustrates the difficulty to carry out sufficiently complete and accurate sets of experiments, to fabricate appropriate samples and, finally, to reach a consistent interpretation of all results. In previous publications 4,5,23,[26][27][28][29] we interpreted our measurements on strongly scattering TiO 2 powders as evidence for strong localization of light in three dimensions, as suggested by P.W. Anderson 3 .…”

Section: Introductionsupporting

confidence: 75%

“…In this article, we present new measurements that show features previously interpreted as signs of Anderson localization [4,5,23,[26][27][28][29], but in regimes where no localization should occur. ToF measurements of very thin samples (L x < ) still show deviations from diffusion, contrary to an expected transition to pure diffusion in the Anderson localization picture.…”

Section: Resultsmentioning

confidence: 87%

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Can 3D light localization be reached in ‘white paint’?

et al. 2016

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When waves scatter multiple times in 3D random media, a disorder driven phase transition from diffusion to localization may occur (Anderson 1958 Phys. Rev. 109 1492-505; Abrahams et al 1979 Phys. Rev. Lett. 42 673-6). In 'The question of classical localization: a theory of white paint?' Anderson suggested the possibility to observe light localization in TiO 2 samples (Anderson 1985 Phil. Mag. B 52 505-9). We recently claimed the observation of localization effects measuring photon time of flight (ToF) distributions (Störzer et al 2006 Phys. Rev. Lett. 96 063904) and evaluating transmission profiles (TPs) (Sperling et al 2013 Nat. Photonics 7 48-52) in such TiO 2 samples.Here we present a careful study of the long time tail of ToF distributions and the long time behavior of the TP width for very thin samples and different turbidities that questions the localization interpretation. We further show new data that allow an alternative consistent explanation of these previous data by a fluorescence process. An adapted diffusion model including an appropriate exponential fluorescence decay accounts for the shape of the ToF distributions and the TP width. These observations question whether the strong localization regime can be reached with visible light scattering in polydisperse TiO 2 samples, since the disorder parameter can hardly be increased any further in such a 'white paint' material.

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Section: Introductionsupporting

confidence: 75%

Section: Resultsmentioning

confidence: 87%

Can 3D light localization be reached in ‘white paint’?

et al. 2016

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“…is the frequency of light between the i-th and the (i + 1)th scatterers. The tensor t m m has been defined in (9).…”

Section: The Intricacies Of Scattering Under a Magnetic Fieldmentioning

confidence: 99%

“…Under suitable conditions they can even completely inhibit transport (strong localization) reaching an insulating regime. During the last two decades, both the weak and strong localization regimes have been extensively studied with systems ranging from electronic waves to ultracold atoms [3][4][5][6][7][8][9][10][11][12].…”

mentioning

confidence: 99%

Multiple scattering of light in cold atomic clouds in a magnetic field

Sigwarth

Labeyrie²,

Delande

et al. 2013

Phys. Rev. A

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Starting from a microscopic theory for atomic scatterers, we describe the scattering of light by a single atom and study the coherent propagation of light in a cold atomic cloud in the presence of a magnetic field B in the mesoscopic regime. Non-pertubative expressions in B are given for the magneto-optical effects and optical anisotropy. We then consider the multiple scattering regime and address the fate of the coherent backscattering (CBS) effect. We show that, for atoms with nonzero spin in their ground state, the CBS interference contrast can be increased compared to its value when B = 0, a result at variance with classical samples. We validate our theoretical results by a quantitative comparison with experimental data.

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“…In this strong scattering regime, there is the potential for interference to affect propagation, the extreme case being 3D strong localization of light or Anderson localization. [4][5][6][7][8][9] In photonics research, there is an ongoing search for highly scattering materials in the optical regime. [10][11][12] The most strongly scattering low absorption materials at optical and near infrared wavelengths to date have been composed of high refractive index optically transparent materials with wavelength size microstructure, separated by a lower index medium.…”

Section: Introductionmentioning

confidence: 99%

Light transport through disordered layers of dense gallium arsenide submicron particles

et al. 2012

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We present a study of optical transport properties of powder layers with submicrometer, strongly scattering gallium arsenide (GaAs) particles. Uniform, thin samples with well controlled thicknesses were created through the use of varying grinding times, sedimentation fractionation, annealing, and a new sedimentation technique. These fabrication parameters were optimized to produce maximum scattering and minimum absorption. The physical properties were characterized using scanning electron microscopy (SEM) and x-ray diffraction. The optical transport mean-free path, absorption length, and the diffusion constant were determined for each sample using both continuous wave and time-resolved methods. The samples scatter strongly in the near infrared region. Total reflection and transmission measurements show that all of these samples have high absorption. X-ray diffraction results suggest that the source of this absorption is grinding induced strain and/or defects in the crystal structure. For all the different grinded GaAs powder samples that we investigated, the absorption length was less than ten micrometers.

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Experimental signatures of Anderson localization of light in three dimensions

Cited by 5 publications

References 30 publications

Can 3D light localization be reached in ‘white paint’?

Can 3D light localization be reached in ‘white paint’?

Multiple scattering of light in cold atomic clouds in a magnetic field

Light transport through disordered layers of dense gallium arsenide submicron particles

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