| Autor: |
Li, Tao, Wang, Shu-Ming, Liu, Hui, Li, Jia-Qi, Wang, Fu-Ming, Zhu, Shi-Ning, Zhang, Xiang |
| Předmět: |
|
| Zdroj: |
Journal of Applied Physics; Jan2008, Vol. 103 Issue 2, p023104, 4p, 1 Diagram, 1 Chart, 4 Graphs |
| Abstrakt: |
Multiple magnetic plasmon polariton (MPP) modes were recently explored in a well-known system—metal/insulator/metal layered structure perforated with periodic holes array [Appl. Phys. Lett. 90, 251112 (2007)]. Now, we consequently study the dispersions of the MPP modes in similar systems with rectangular hole arrays by analyzing the detailed optical transmittances at oblique incidences. Significantly, our results provide a definite polarization-dependent dispersion property of MPP modes: strong dispersive MPP(±1,±1) modes with the degeneration broken up and a remained degenerate MPP(0,±1) mode for s-polarization and almost flat dispersions of all MPP modes for p-polarization. Such a phenomenon is explained by the different coupling intensities among the artificial “magnetic atoms.” This finding helps us to make a deeper understanding on the artificial magnetic excitations in this trilayer metamaterial. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
