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30 April 2004 Electromagnetic energy transfer in nanoscale metallic waveguide arrays
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Proceedings Volume 5279, Optical Fibers and Passive Components; (2004)
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China
Electromagnetic(EM) energy can propagate along optical waveguides made by using the dependence of surface plasmon polaritons(SPPs) on nanometer gap width between two parallel metallic plates. Finite-difference timedomain (FDTD) was employed to calculate the propagation constant of this nanoscale metallic waveguide. The agreement between the calculated values and results predicted by the theory of metallic waveguide is quite satisfactory. We then demonstrate a branched structure with right-angle bends and structures that can be used as nanoscale interferometers by using the ideal of nanoscale metallic waveguides. EM energy transfer was simulated in these structures by using FDTD method. The results show that bend and insertion losses both remain at an acceptable level. We also simulated EM energy transfer in nanoscale metallic waveguide arrays. It is found that the energy spreads into two main lobes as the light propagates along the waveguides. The separation angle of the two lobes is determined by the period of the array.
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Bing Wang and Guo Ping Wang "Electromagnetic energy transfer in nanoscale metallic waveguide arrays", Proc. SPIE 5279, Optical Fibers and Passive Components, (30 April 2004);

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