A three-ring structure plasmon-induced transparent optical material and its application
A technology of plasmons and optical materials, which is applied in optics, optical components, instruments, etc., can solve the problems of complex structure design, difficult production, and restrictions on plasmon-induced transparency technology, and achieve broad application prospects and high transmission High rate, stability and reproducibility
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Embodiment 1
[0026] A plasmon-induced transparent optical material with a three-ring structure, consisting of a substrate and three-ring structural units arranged periodically in two dimensions on the substrate, the substrate is a quartz wafer, and the three-ring structural units include two The first metal toroid 1, the second metal torus 2 is also arranged between the 2 first metal toroids 1, the size of the first metal torus 1 and the second metal torus 2 are consistent, so The first metal torus 1 and the second metal torus 2 are made of silver, and the second metal torus 2 rotates along its z-axis space and is connected to the center of the two first metal torus 1 The space angle θ formed by the lines is 0, and the two first metal toroids 1 are symmetrically arranged on both sides of the second metal torus 2 .
[0027] The arrangement period of the three-ring structure unit includes the x-y plane period p (the distance between the geometric centers of two adjacent three-ring structure ...
Embodiment 2-8
[0030] Embodiments 2-8 are different from Embodiment 1 in that: the lateral displacement s of the second metal torus 2 relative to the line connecting the centers of the two first metal toruses 1 is 2.5 nm, 5 nm, and 7.5 nm, respectively. nm, 10 nm, 20 nm, 30 nm, 40 nm, others are the same as in Example 1.
Embodiment 9-16
[0032] The difference between Embodiment 9-16 and Embodiment 1 is that the included space angle θ in Embodiment 9-16 is respectively 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80° °, the distance between two first metal toruses in the tangential direction from its adjacent second metal torus is equal, and the others are the same as in Embodiment 1.
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