Experimental analysis of cross-talk effects between a series of nano-hole structures on the same metal film

The miniaturization of nanostructure-based optical sensing devices requires integration of multiple nanostructure patterns with smaller spacing. However, the effect of plasmonic cross-talk and its effect on spectral transmission are not fully understood. In this paper, we experimentally fabricated different sets of nano-hole arrays (each with an area of 30 μm x 30 μm) of various hole diameter, hole spacing, and inter-array spacing. The spectral transmission of each nano-hole array was measured and the effect of inter-array spacing on peak transmission and resonance wavelength was determined.

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