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With the rapid development of nanophotonics,the study of surface plasmons derived therefrom has also come into view.In essence,the surface plasmon polaritons are localized electromagnetic waves generated on the metal surface,especially at the edge surfaces of the metal and at the interface with the medium.The macroscopic performance is the non-uniformity of the field distribution of metal nanostructures.At the same time,the effect of regulating the surface plasma field distribution can be achieved by changing the shape,size,and other parameters of the metal nanostructure,which makes the surface plasmon optical field distribution can be effectively applied in biomedical,aerospace and other fields.This paper describes the research background and significance of the high sensitivity field distribution of surface plasmon polaritons.Then the principle of generating surface plasmons is described in detail,which provides theoretical support for our follow-up work.Then,the importance of simulation in engineering applications and related simulation theory are briefly introduced.From the point of view that light waves will generate different surface plasmon polaritons for different metal nanostructures,the surface plasma to be discussed in this paper is derived.Simulation Study of High Sensitivity Control of Body Field DistributionBased on the basic principle of the basic surface plasma field distribution and associated simulation ideas,the FDTD Solution software is used for simulation and corresponding parameter settings,and the parameters,shapes,materials,etc.of the designed model are continuously optimized.The resulting surface plasma field map is more ideal and reliable.