Manifestation of the roughness-square-gradient scattering in surface-corrugated waveguides
Manifestation of the roughness-square-gradient scattering in surface-corrugated waveguides
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 …