In this letter, we report the experimental results on plasmonic waves excited on a silver film coated with dye-doped poly(methyl methacrylate) nanogratings, which are characterized by leakage radiation microscopy. Various patterns of the surface plasmon-coupled emission are demonstrated with the structured nanogratings. Plasmonic waves of anisotropic wave-numbers and Bragg mirror effect are both observed in this configuration. Mechanism of the experimental results is discussed from the viewpoint of coupling between adjacent stripe loaded surface plasmons. Our work has potential application in the development of plasmon lasers.
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Zhang et al. (2010) studied this question.
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