Artificial surface plasmon coupler based on transmission type phase gradient super surface
An artificial surface plasmon and phase gradient technology, which is applied in the field of polariton to achieve the effects of easy preparation, simple structure, and resolution of beam width sensitivity
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0029] refer to figure 1 , the artificial surface plasmon coupler based on the transmission-type phase gradient metasurface provided in the embodiment of the present invention, the coupler includes a phase gradient metasurface (1) and a square patch array (2), and the phase gradient The metasurface (1) is located directly above the square patch array (2), and there is a certain distance between the two. Through optimization, the optimal distance ...
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