Resonance Absorption in Multilayered Bi-gratings
We numerically solved the problem of plane-wave diffraction in multilayered doubly periodic gratings consisting of thin layers made of metal or dielectric.In solving the problem,we employed a computational technique based on modal expansion.Taking a sandwiched structure Vacuum/Ag/SiO2/Ag/Vacuum for an example,we observed:(1)excitation of a SISP mode at the lit surface of the 1st Ag layer with strong field enhancement for thick enough Ag layer case;(2)excitation of coupled SPR modes(SRSP or LRSP)at each surface between vacuum and Ag layers with strong field enhancements for thin enough Ag layer cases no matter with the thickness of SiO2 layers;(3)enhancements of field at surfaces between Ag and SiO2 layers in some cases related with the thickness of SiO2 layers.The coupled plasmon modes were resulted by the resonance waves excited on four surfaces in these cases.
Y.Okuno S.Bai T.Suyama Q.Zhao X.Xu
Graduate School of Science and Technology,Kumamoto University,Kumamoto 860-8555,Japan School of Engineering,Kumamoto University,Kumamoto 860-8555,Japan School of Engineering,Kyushu Sangyo University,Fukuoka 813-0004,Japan
国际会议
Progress in Electromagnetics Research Symposium 2013(2013年电磁学研究新进展学术研讨会)
台北
英文
1011-1015
2013-03-01（万方平台首次上网日期，不代表论文的发表时间）