Abstract
The influence of the periodicity of subwavelength hole arrays and hole shape on transmission frequency and intensity has been studied. The subwavelength hole array sample is prepared on the 220 nm Au film. The transmission characteristics are measured and analyzed. The transmission spectra show that the different transmission peaks depend on the periodicity of hole arrays and the shape of the holes. With the shorter hole array period, the transmission peak shows blue shift, and the ohmic losses of surface plasmon on the metal film also play an important role in the transmission intensity.
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