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SEM micrograph of SOIPWG before ZEP coating.
Mode characteristics of quasi-TE and quasi-TM modes of SOIPWG for t Au = 40 nm gold thickness. The TE mode of SOIWG is also shown for comparison. The insets show the electric field profiles corresponding to each mode.
(a) Loss characteristics of SOIPWG and (b) deduced propagation losses of SOIPWG and SOIWG for different widths at λ = 1550 nm. The right axis of (b) shows the propagation loss in dB/cm.
The coupling losses of SOIWG (ηSOI) and SOIPWG (ηSPP).
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