Meta-structure
Disclosed is a meta-structure. The meta-structure includes a lower electrode, a lower insulating layer on the lower electrode, a lower metal oxide layer on the lower insulating layer, a lower metal layer on the lower metal oxide layer, a middle metal oxide layer on the lower metal layer, an upper metal layer on the middle metal oxide layer, an upper metal oxide layer on the upper metal layer, an upper insulating layer on the upper metal oxide layer, and antenna electrodes on the upper insulating layer.
1. A meta-structure comprising:
a lower electrode;
a lower insulating layer on the lower electrode;
a lower metal oxide layer on the lower insulating layer;
a lower metal layer on the lower metal oxide layer;
a middle metal oxide layer on the lower metal layer;
an upper metal layer on the middle metal oxide layer;
an upper metal oxide layer on the upper metal layer;
an upper insulating layer on the upper metal oxide layer; and
antenna electrodes on the upper insulating layer.
2. The meta-structure of claim 1 , wherein the middle metal oxide layer has a thickness of 4 nm to 15 nm.
3. The meta-structure of claim 1 , wherein each of the lower electrode and the antenna electrodes includes aluminum.
4. The meta-structure of claim 1 , wherein each of the lower metal oxide layer, the middle metal oxide layer, and the upper metal oxide layer includes indium tin oxide (ITO).
5. The meta-structure of claim 1 , wherein each of the lower metal layer and the upper metal layer includes silver.
6. The meta-structure of claim 1 , wherein the antenna electrodes have a thickness of 50 nm, a pitch of 340 nm, and a width of 96 nm, the upper insulating layer has a thickness of 10 nm, the upper metal oxide layer has a thickness of 7 nm, the upper metal layer has a thickness of 5 nm, the middle metal oxide layer has a thickness of 10.5 nm, the lower metal layer has a thickness of 5 nm, the lower metal oxide layer has a thickness of 7 nm, the lower insulating layer has a thickness of 10 nm, and the lower electrode has a thickness of 100 nm.
7. The meta-structure of claim 1 , wherein the antenna electrodes have a thickness of 50 nm, a pitch of 325 nm, and a width of 91.8 nm, the upper insulating layer has a thickness of 10 nm, the upper metal oxide layer has a thickness of 6 nm, the upper metal layer has a thickness of 5 nm, the middle metal oxide layer has a thickness of 10.5 nm, the lower metal layer has a thickness of 5 nm, the lower metal oxide layer has a thickness of 6 nm, the lower insulating layer has a thickness of 10 nm, and the lower electrode has a thickness of 100 nm.
8. The meta-structure of claim 1 , wherein the antenna electrodes have a thickness of 50 nm, a pitch of 220 nm, and a width of 93.2 nm, the upper insulating layer has a thickness of 10 nm, the upper metal oxide layer has a thickness of 8 nm, the upper metal layer has a thickness of 5 nm, the middle metal oxide layer has a thickness of 6.6 nm, the lower metal layer has a thickness of 5 nm, the lower metal oxide layer has a thickness of 8 nm, the lower insulating layer has a thickness of 10 nm, and the lower electrode has a thickness of 100 nm.
9. The meta-structure of claim 1 , wherein the antenna electrodes have a thickness of 50 nm, a pitch of 30.5 nm, and a width of 86 nm, the upper insulating layer has a thickness of 10 nm, the upper metal oxide layer has a thickness of 4 nm, the upper metal layer has a thickness of 5 nm, the middle metal oxide layer has a thickness of 7.7 nm, the lower metal layer has a thickness of 5 nm, the lower metal oxide layer has a thickness of 4 nm, the lower insulating layer has a thickness of 10 nm, and the lower electrode has a thickness of 100 nm.
10. The meta-structure of claim 1 , wherein the antenna electrodes have a thickness of 50 nm, a pitch of 20 nm, and a width of 84.7 nm, the upper insulating layer has a thickness of 9 nm, the upper metal oxide layer has a thickness of 5 nm, the upper metal layer has a thickness of 5 nm, the middle metal oxide layer has a thickness of 9.3 nm, the lower metal layer has a thickness of 5 nm, the lower metal oxide layer has a thickness of 5 nm, the lower insulating layer has a thickness of 9 nm, and the lower electrode has a thickness of 100 nm.
11. The meta-structure of claim 1 , wherein the antenna electrodes have a thickness of 50 nm, a pitch of 340 nm, and a width of 96 nm, the upper insulating layer has a thickness of 10 nm, the upper metal oxide layer has a thickness of 10 nm, the upper metal layer has a thickness of 5 nm, the middle metal oxide layer has a thickness of 6.3 nm, the lower metal layer has a thickness of 5 nm, the lower metal oxide layer has a thickness of 10 nm, the lower insulating layer has a thickness of 10 nm, and the lower electrode has a thickness of 100 nm.
12. The meta-structure of claim 1 , wherein the antenna electrodes have a thickness of 50 nm, a pitch of 240 nm, and a width of 67.8 nm, the upper insulating layer has a thickness of 10 nm, the upper metal oxide layer has a thickness of 5 nm, the upper metal layer has a thickness of 6 nm, the middle metal oxide layer has a thickness of 9 nm, the lower metal layer has a thickness of 6 nm, the lower metal oxide layer has a thickness of 5 nm, the lower insulating layer has a thickness of 10 nm, and the lower electrode has a thickness of 100 nm.
13. The meta-structure of claim 1 , wherein the antenna electrodes have a thickness of 50 nm, a pitch of 158 nm, and a width of 66.9 nm, the upper insulating layer has a thickness of 10 nm, the upper metal oxide layer has a thickness of 5 nm, the upper metal layer has a thickness of 5.5 nm, the middle metal oxide layer has a thickness of 4 nm, the lower metal layer has a thickness of 5.5 nm, the lower metal oxide layer has a thickness of 5 nm, the lower insulating layer has a thickness of 10 nm, and the lower electrode has a thickness of 100 nm.
14. The meta-structure of claim 1 , wherein the antenna electrodes have a thickness of 50 nm, a pitch of 235 nm, and a width of 66.4 nm, the upper insulating layer has a thickness of 10 nm, the upper metal oxide layer has a thickness of 5 nm, the upper metal layer has a thickness of 5.5 nm, the middle metal oxide layer has a thickness of 5.2 nm, the lower metal layer has a thickness of 5.5 nm, the lower metal oxide layer has a thickness of 5 nm, the lower insulating layer has a thickness of 10 nm, and the lower electrode has a thickness of 100 nm.
15. The meta-structure of claim 1 , wherein the antenna electrodes have a thickness of 50 nm, a pitch of 230 nm, and a width of 65 nm, the upper insulating layer has a thickness of 10 nm, the upper metal oxide layer has a thickness of 5 nm, the upper metal layer has a thickness of 5.5 nm, the middle metal oxide layer has a thickness of 4 nm, the lower metal layer has a thickness of 5.5 nm, the lower metal oxide layer has a thickness of 5 nm, the lower insulating layer has a thickness of 10 nm, and the lower electrode has a thickness of 100 nm.
16. The meta-structure of claim 1 , wherein the antenna electrodes have a thickness of 50 nm, a pitch of 122 nm, and a width of 51 nm, the upper insulating layer has a thickness of 10 nm, the upper metal oxide layer has a thickness of 4 nm, the upper metal layer has a thickness of 5 nm, the middle metal oxide layer has a thickness of 15 nm, the lower metal layer has a thickness of 5 nm, the lower metal oxide layer has a thickness of 4 nm, the lower insulating layer has a thickness of 10 nm, and the lower electrode has a thickness of 100 nm.
17. The meta-structure of claim 1 , wherein the antenna electrodes have a thickness of 50 nm, a pitch of 200 nm, and a width of 56.5 nm, the upper insulating layer has a thickness of 10 nm, the upper metal oxide layer has a thickness of 7 nm, the upper metal layer has a thickness of 5 nm, the middle metal oxide layer has a thickness of 13.2 nm, the lower metal layer has a thickness of 5 nm, the lower metal oxide layer has a thickness of 7 nm, the lower insulating layer has a thickness of 10 nm, and the lower electrode has a thickness of 100 nm.
18. The meta-structure of claim 1 , wherein the antenna electrodes have a thickness of 50 nm, a pitch of 205 nm, and a width of 57.9 nm, the upper insulating layer has a thickness of 10 nm, the upper metal oxide layer has a thickness of 10 nm, the upper metal layer has a thickness of 5 nm, the middle metal oxide layer has a thickness of 10 nm, the lower metal layer has a thickness of 5 nm, the lower metal oxide layer has a thickness of 10 nm, the lower insulating layer has a thickness of 10 nm, and the lower electrode has a thickness of 100 nm.
19. The meta-structure of claim 1 , wherein the antenna electrodes have a thickness of 50 nm, a pitch of 190 nm, and a width of 53.7 nm, the upper insulating layer has a thickness of 10 nm, the upper metal oxide layer has a thickness of 6 nm, the upper metal layer has a thickness of 5 nm, the middle metal oxide layer has a thickness of 12 nm, the lower metal layer has a thickness of 5 nm, the lower metal oxide layer has a thickness of 6 nm, the lower insulating layer has a thickness of 10 nm, and the lower electrode has a thickness of 100 nm.
20. The meta-structure of claim 1 , wherein the antenna electrodes have a thickness of 50 nm, a pitch of 135 nm, and a width of 57.2 nm, the upper insulating layer has a thickness of 10 nm, the upper metal oxide layer has a thickness of 8 nm, the upper metal layer has a thickness of 5 nm, the middle metal oxide layer has a thickness of 11 nm, the lower metal layer has a thickness of 5 nm, the lower metal oxide layer has a thickness of 8 nm, the lower insulating layer has a thickness of 10 nm, and the lower electrode has a thickness of 100 nm.