The surface plasmon polariton dispersion relations in a nonlinear-metal-nonlinear dielectric structure of arbitrary nonlinearityProject supported by the National Basic Research Program of China (Grant No. 2010CB923202).
Liu, Bing-Can; Yu, Li; Lu, Zhi-Xin; Liu, Bing-Can; School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China; Department of Fundamental Courses, Academy of Armored Force Engineering, Beijing 100072, China; Yu, Li; School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China; Lu, Zhi-Xin; School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
Журнал:
Chinese Physics B
Дата:
2011-03-01
Аннотация:
The analytic surface plasmon polaritons (SPPs) dispersion relation is studied in a system consisting of a thin metallic film bounded by two sides media of nonlinear dielectric of arbitrary nonlinearity is studied by applying a generalised first integral approach. We consider both asymmetric and symmetric structures. Especially, in the symmetric system, two possible modes can exist: the odd mode and the even mode. The dispersion relations of the two modes are obtained. Due to the nonlinear dielectric, the magnitude of the electric field at the interface appears and alters the dispersion relations. The changes in SPPs dispersion relations depending on film thicknesses and nonlinearity are studied.
357.5Кб