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Advances in OptoElectronics
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Advances in OptoElectronics
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2011
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Article
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Fig 4
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Research Article
Analysis of Plasmonic Waveguides and Gratings Using Implicit Finite-Difference Methods
Figure 4
Various plasmonic gratings. (a) concave type, (b) convex type, (c) flat-concave type, and (d) flat-convex type.
(a)
(b)
(c)
(d)