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Effect of defect depth on surface plasmon scattering by subwavelength surface defects
Physical Review B
Surface plasmon scattering by bidimensional indentations and protrusions is examined, mainly in the optical regime. The width of the defects is fixed, while their height is varied. Both individual defects and arrays of defects are considered. Protrusions mainly reflect the incident plasmons in the optical range. Indentations mainly radiate the incident plasmon out of plane. An indentation produces maximum reflection and out-of-plane radiation at the same wavelength when its interaction with thedoi:10.1103/physrevb.83.075433 fatcat:bv36doaybvdw3is4gm4z3zbve4