Manifestation of the Roughness-Square-Gradient Scattering in Surface-Corrugated Waveguides
arXiv:cond-mat/0510530 · doi:10.1103/PhysRevB.73.155421
Abstract
We study a new mechanism of wave/electron scattering in multi-mode surface-corrugated waveguides/wires. This mechanism is due to specific square-gradient terms in an effective Hamiltonian describing the surface scattering, that were neglected in all previous studies. With a careful analysis of the role of roughness slopes in a surface profile, we show that these terms strongly contribute to the expression for the inverse attenuation length (mean free path), provided the correlation length of corrugations is relatively small. The analytical results are illustrated by numerical data.
13 pages, 3 figures
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Cited by in corpus (8)
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- Reflection resonances in surface-disordered waveguides: strong higher-order effects of the disorder
- Coupled mode approach to square gradient Bragg reflection resonances in corrugated dielectric waveguides
- Disorder to chaos transition in the conductance distribution of corrugated waveguides
- Discrimination between two mechanisms of surface-scattering in a single-mode waveguide