We show the emergence of light localization in arrays of coupled optical waveguides with randomness only in the imaginary part of their refractive index and develop a one-parameter scaling theory for the normalized participation number of Floquet-Bloch modes. This localization introduces a different 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.
A. Basiri et al., "Light Localization Induced by a Random Imaginary Refractive Index," Physical Review A - Atomic, Molecular, and Optical Physics, vol. 90, no. 4, pp. 043815-1 - 043815-7, American Physical Society (APS), Oct 2014.
The definitive version is available at https://doi.org/10.1103/PhysRevA.90.043815
Keywords and Phrases
International Standard Serial Number (ISSN)
Article - Journal
© 2014 American Physical Society (APS), All rights reserved.
01 Oct 2014