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Experimental analysis of surface plasmon behavior in metallic circular slits
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View: Figures


Image of FIG. 1.
FIG. 1.

Optical transmission of a single metallic ring: (a) is the intensity of the halogen lamp light source (outer radius is fixed at , and the various line types correspond to the different circular slit opening widths and where Ag film thickness was ), and (b) comparison of the experimental results with the theoretical values .

Image of FIG. 2.
FIG. 2.

(Color online) Optical transmission of a circular grating: (a) Ag thickness was , with a circular slit width opening of at a period of and outer radius of first circular slit at . The various colors represent the various circular slit numbers. The dashed line indicates the transmission spectrum as obtained by shifting the measuring point from the center of the grating. (b) The circular grating has ten circular slits (the opening width of the circular slit was and Ag film thickness on a glass substrate was ). The various colors represent the various distances above the metal surface along with the scanning electron microscopy micrograph of the circular grating.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Experimental analysis of surface plasmon behavior in metallic circular slits