Onset of Delocalization in Quasi-1D Waveguides with Correlated Surface Disorder

Details Onset of Delocalization in Quasi-1D Waveguides with Correlated Surface Disorder Onset of Delocalization in Quasi-1D Waveguides with Correlated Surface Disorder

2002-09-26

arxiv.org/abs/cond-mat/0209602v2

Phys. Rev. B 67, 113402 (2003)

Physics

Condensed Matter

RevTex, 4 pages, no figures, few references are added

Scientific paper

10.1103/PhysRevB.67.113402

We present first analytical results on transport properties of many-mode waveguides with rough surfaces having long-range correlations. We show that propagation of waves through such waveguides reveals a quite unexpected phenomena of a complete transparency for a subset of propagating modes. These modes do not interact with each other and effectively can be described by the theory of 1D transport with correlated disorder. We also found that with a proper choice of model parameters one can arrange a perfect transparency of waveguides inside a given window of energy of incoming waves. The results may be important in view of experimental realizations of a selective transport in application to both waveguides and electron/optic nanodevices.

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