摘要The plasmon waveguide based on double chain of gold cylinders is studied using the finite-difference time-domain method (FDTD). The wavelength of the incident Gaussian beam ranges from 650 to 1200nm, and the corresponding attenuation factors are calculated. We also present a Y-splitter with 90° splitting angle, each branch in the form of double chains. The transmission efficiencies for different wavelengths are evaluated.
Abstract：The plasmon waveguide based on double chain of gold cylinders is studied using the finite-difference time-domain method (FDTD). The wavelength of the incident Gaussian beam ranges from 650 to 1200nm, and the corresponding attenuation factors are calculated. We also present a Y-splitter with 90° splitting angle, each branch in the form of double chains. The transmission efficiencies for different wavelengths are evaluated.
[1] Ebbesen T W, Lezec H J, Ghaemi H F, Thio T and Wolff P A 1998 Nature 391 667 [2] Barnes W L, Dereux A and Ebbesen T W 2003 Nature 424824 [3] Ozbay E 2006 Science 311 189 [4] Quinten M, Leitner A, Krenn J R and Aussenegg F R 1998 Opt.Lett. 23 1331 [5] Maier S A, Kik P G and Atwater H A 2002 Appl. Phys.Lett. 81 1714 [6] Maier S A, Kik P G, Atwater H A, Meltzer S, Harel E, Koel B andRequicha A G 2003 Nat. Mater. 2 229 [7] Maier S A, Kik P G and Atwater H A 2003 Phys. Rev.B 67 205402 [8] Maier S A 2003 PhD Thesis (Pasadena: California Institute ofTechnology) [9] Brongersma M L, Hartman J W and Atwater H A 2000 Phys.Rev. B 62 R16356 [10] Gray S K and Kupka T 2003 Phys. Rev. B 68 045415 [11] Saj W M 2005 Opt. Express 13 4818 [12] Panoiu N C and Osgood R M 2005 Mater. Res. Soc. Symp.Proc. 846 DD5.6.1 [13] Yee K S 1966 IEEE Trans. Antennas Propag. 14 302 [14] Taflove A and Hagness S C 2000 Computational Electrodynamics:The Finite-Difference Time-Domain Method 2nd edn (Boston: Artech House) [15] Vial A, Grimault A S, Macias D, Barchiesi D and Chapelle M L 2005 Phys. Rev. B 71 085416 [16] Johnson P B and Christy R W 1972 Phys. Rev. B 6 4370
2008, Vol. 25 
