We report the enhancement of the effect of transverse localization of light (TL) in presence of a weak longitudinal modulation of refractive index in disordered waveguide lattices. In our chosen lattices, tunneling inhibition along length favors to achieve the diffraction-free propagation along with the simultaneous presence of transverse disorder. Results will be useful to tune the threshold value of disorder to achieve localized light. © 2012 IEEE.

Somnath Ghosh

Department of Physics

IIT Jodhpur

R.K. Varsheny

B.P. Pal

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