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Rigorous analysis of extremely asymmetrical scattering of electromagnetic waves in slanted periodic gratings
T. A. Nieminen, D. K. Gramotnev
Extremely asymmetrical scattering (EAS) is a new type of Bragg scattering in thick, slanted, periodic gratings. It is realised when the scattered wave propagates parallel to the fr…
Extremely asymmetrical scattering in gratings with varying mean structural parameters
D. K. Gramotnev, T. A. Nieminen, T. A. Hopper
Extremely asymmetrical scattering (EAS) is an unusual type of Bragg scattering in slanted periodic gratings with the scattered wave (the +1 diffracted order) propagating parallel t…
Non-steady-state double-resonant extremely asymmetrical scattering of waves in periodic gratings
Dmitri K. Gramotnev, Timo A. Nieminen
Double-resonant extremely asymmetrical scattering (DEAS) is a strongly resonant type of Bragg scattering in two joint or separated uniform gratings with different phases. It is cha…
Rigorous analysis of grazing-angle scattering of electromagnetic waves in periodic gratings
D. K. Gramotnev, T. A. Nieminen
Grazing-angle scattering (GAS) is a type of Bragg scattering of waves in slanted non-uniform periodic gratings, when the diffracted order satisfying the Bragg condition propagates…
Anomalous absorption of bulk shear sagittal acoustic waves in a layered structure with viscous fluid
Dmitri K. Gramotnev, Melissa L. Mather, Timo A. Nieminen
It is demonstrated theoretically that the absorptivity of bulk shear sagittal waves by an ultra-thin layer of viscous fluid between two different elastic media has a strong maximum…
Grazing-angle scattering of electromagnetic waves in gratings with varying mean parameters: grating eigenmodes
D. K. Gramotnev, S. J. Goodman, T. A. Nieminen
A highly unusual pattern of strong multiple resonances for bulk electromagnetic waves is predicted and analysed numerically in thick periodic holographic gratings in a slab with th…