Light Localization induced by Random Imaginary Permittivities

Abstract

We show the emergence of light localization in arrays of coupled optical waveguides with randomness only in the imaginary part of their permittivity and develop a one-parameter scaling theory for the normalized participation number of the Floquet-Bloch modes. This localization introduces a new length scale in the decay of the autocorrelation function of a paraxial beam propagation. Our results are relevant to a vast family of systems with randomness in the dissipative part of their impedance spatial profile.

five pages plus two pages of supplementary material

References in corpus (1)

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

Cited by in corpus (3)

• Anderson transition in three-dimensional systems with non-Hermitian disorder
• Transport and localization of waves in ladder-shaped lattices with locally $\mathcal{P}\mathcal{T}$-symmetric potentials
• Critical States Embedded in the Continuum