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Band structure of a 1D MD stack. The gray zones represent the allowed bands. The black line denotes the light line of dielectric. The result obtained from the analytical criteria is between the gray dashed lines. , , , and .
Dispersion relation of a MDM waveguide. The black line is the light line of dielectric. The lower gray line denotes the fundamental SPP modes. The first-order guided modes and SPP modes coexist in the lower dashed line. The higher gray (dashed) line denotes the second (third)-order guided modes.
Normal incidence transmittances of a 4.5-period stack with thick on the entrance and exit faces (the solid line) and of a same structure except the metal is described by Drude model (the dashed line).
Magnetic field distributions inside a 9.5-period sample with AR coatings when a point source is located at the center. (a) The wavelength is inside the band gap, and (b) in the pass band.
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