Anderson localization of light in the presence of weak longitudinal modulation of the refractive index in 1D disordered waveguide lattices

摘要

We report an enhancement of the effect of transverse localization of light (TL) in the presence of a weak longitudinal modulation of the refractive index in disordered waveguide lattices. In our chosen lattices, tunneling inhibition along the length favors diffraction-free propagation along with the simultaneous presence of transverse disorder. Our results will be useful for tuning the threshold value of disorder to achieve localized light.