Abstract
The nonresonant extraordinary optical transmission (EOT) can achieve broadband transmission, which is significant for the collection and excitation of the broadband light. To obtain broadband transmission, in this paper, we proposed a subwavelength metallic circular nanohole arrays. The transmission properties of the metallic circular nanohole arrays were investigated using the finite element method. Results show that this paradigm structure can achieve broadband transmission. In addition, the effects of the polarization direction, the radius of the holes and the period of the arrays on the transmission property were also studied.
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