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

fYear

2006

fDate

16-18 Oct. 2006

Firstpage

370

Lastpage

372

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/METAMAT.2006.334919

Filename

4134824