Light focusing in the Anderson regime

Marco Leonetti (), Salman Karbasi, Arash Mafi and Claudio Conti
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Marco Leonetti: University of Rome La Sapienza
Salman Karbasi: University of Wisconsin–Milwaukee
Arash Mafi: University of Wisconsin–Milwaukee
Claudio Conti: University Sapienza

Nature Communications, 2014, vol. 5, issue 1, 1-6

Abstract: Abstract Anderson localization is a regime in which diffusion is inhibited and waves (also electromagnetic waves) get localized. Here we exploit adaptive optics to achieve focusing in disordered optical fibres in the Anderson regime. By wavefront shaping and optimization, we observe the generation of a propagation-invariant beam, where light is trapped transversally by disorder, and show that Anderson localizations can be also excited by extended speckled beams. We demonstrate that disordered fibres allow a more efficient focusing action with respect to standard fibres in a way independent of their length, because of the propagation-invariant features and cooperative action of transverse localizations.

Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5534

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DOI: 10.1038/ncomms5534

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