Spp Waveguide Based On The Goos-Hanchen Effect
OPTICS LETTERS(2021)
摘要
We propose and realize a single-mode surface plasmon polariton (SPP) waveguide formed by two parallel grooves on the surface of a high-quality silver film. In the waveguide, the SPP wave undergoes the Goos-Hanchen shift of up to 0.77 . lambda(SPP) at each successive reflection, with the electric field of the SPP wave outside the metal, which significantly reduces the metal loss of the guided SPP wave. Using the waveguide, we demonstrate a complex on-chip optical circuit that includes (1) SPP plane wave excitation, (2) SPP plane wave focusing with a parabolic mirror, and (3) coupling of the focused SPP wave to the waveguide. (C) 2021 Optical Society of America
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关键词
goos–hänchen effect
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