Analytical description of the transverse Anderson localization of light

 

 

Anderson localization is a sophisticated phenomenon which is still not completely understood. In a recent paper, we propose a comprehensive mean field theory, (a combination of an effective-medium theory for transverse disorder with the self-consistent localization theory), which covers the relevant aspects of the phenomenon in the transverse case, that is in the case of light propagating in a system invariant along propagation direction and with the disorder on the transverse plane.

In particular, we explain the focusing mechanism leading to the establishment of narrow transparent channels along a disordered optical fiber.

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