Title :
Extraordinary Transmission through Elliptical Gold Nanowire Grating under s-polarization Excitation
Author :
Yuan, Guang-Hui ; Wang, Pei ; Zhang, Dou-Guo ; Jiao, Xiao-Jin ; Ming, Hai
Author_Institution :
Dept. of Phys., Univ. of Sci. & Technol. of China, Hefei
Abstract :
Based on the rigorous coupled-wave analysis (RCWA) algorithm, we have analyzed the extraordinary transmission through elliptical gold nanowire grating for s- polarization. The transmittance is rather low in the common case because surface plasmons cannot be excited for this polarization, here we show that a dielectric film which sustains a surface wave on the top of the elliptical gold nanowire grating can strongly enhance the transmittance.
Keywords :
coupled mode analysis; dielectric thin films; diffraction gratings; gold; light polarisation; light transmission; nanowires; optical films; optical materials; surface plasmons; Au; dielectric film; elliptical gold nanowire grating; extraordinary transmission; rigorous coupled-wave analysis; s-polarization excitation; surface plasmons; transmittance; Algorithm design and analysis; Corrugated surfaces; Dielectric films; Gold; Gratings; Optical arrays; Optical films; Optical surface waves; Plasmons; Surface waves; Elliptical metallic gratings; RCWA; enhanced transmission; surface wave modes;
Conference_Titel :
Biophotonics, Nanophotonics and Metamaterials, 2006. Metamaterials 2006. International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
0-7803-9773-8
Electronic_ISBN :
0-7803-9774-6
DOI :
10.1109/METAMAT.2006.334919
