Abstract

To obtain the numerical solution of normal surface plasmon polariton (SPP) modes of free oscillations of the electromagnetic field on a cylindrical periodic dielectric-metal interface, a combination method is proposed by taking advantage of Green's function method and Chandezon's approach. With such methods, the dispersion curves and electromagnetic field distributions of SPP modes are calculated based on an Au-Si₃N₄ interface with both sinusoidal and symmetrical sawtooth shapes. The simulation results prove that the proposed method can be applied for calculating the electromagnetic field distribution of the SPP mode at an arbitrary wave vector along the dispersion curve and on arbitrary interface shapes. Furthermore, good stability and sufficient accuracy can be obtained with moderate frequency searching steps and a coefficients matrix order.

© 2009 Optical Society of America

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History
Original Manuscript: March 3, 2009
Manuscript Accepted: May 21, 2009
Revised Manuscript: May 15, 2009
Published: June 19, 2009

References

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Author Affiliations

Xue Feng, Weiwei Ke, Xuan Tang, Yidong Huang, Wei Zhang, Jiangde Peng

State Key Laboratory of Integrated Optoelectronics, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China

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