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(Color online) (a) Schematic of the investigated SWMG. Calculated zero-order TE and TM transmittances of the SWMG with respect to the change of (b) grating period d and (c) groove depth h.
Absolute value of the lateral field amplitude of the TE1 mode (solid curve) and TM0 mode (dashed curve) in the MIM waveguide.
(Color online) Distributions of electromagnetic field amplitudes (color scale) and the Poynting vector (white arrows) in the grating region for (a) TE-polarized and (b) TM-polarized illumination at λ = 193 nm, and (c) TM-polarized illumination at an FP resonant wavelength λ = 260 nm.
(a) SEM-image of the fabricated SWMG sample. (b) Experimentally measured and numerically calculated TE and TM transmittance spectra of the SWMG sample under normal incidence.
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