Physics – Optics
Scientific paper
2009-02-06
PHYSICAL REVIEW B 79, 024304 (2009)
Physics
Optics
12 pages, 4 figures, experiment results
Scientific paper
10.1103/PhysRevB.79.024304
In this paper, we will propose that magnetic-resonance nanostructures in a metal surface could be used to realize extraordinary optical transmission (EOT). Toward this goal, we designed and fabricated a one dimensional diatomic chain of slit-hole resonator (SHR). Due to the strong exchange current interaction, a type of magnetic plasmon (MP) propagation mode with a broad frequency bandwidth was established in this system. Apparent EOT peaks induced by the MP mode were observed in our measured spectra at infrared frequencies. The strongest EOT peak was obtained at 1.07 eV with an incident angle of 20 degree. The measured dependence of EOT peaks on the incident angle coincided with the theoretical results quite well. This proposed MP propagation mode in SHR structure has good potential applications in multifrequency nonlinear optical processes.
Li Jing-Qian
Li Tiancheng
Liu Hongya
Wang Jia-Qi
Wang Shao-Min
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