全息术是一种提供三维成像的技术，与一般的照相不同，全息术同时记录了光场的振幅与相位，通常全息术不能记录物体的真实颜色。之后发展的一系列彩色全息技术，如彩虹全息术、体全息术等，仍然有着一定的缺陷不能完美的反应记录物体的真彩色信息。最近基于表面等离子体提出了一种真彩色全息术，其实验中获得了物体的真彩色三维全息信息。本文先回顾了全息光学原理与表面等离子体的原理，针对现有的两种表面等离子体全息实验，通过理论分析金属薄膜和金属光栅的光学特性，给出了相应的传递函数。第一个传递函数是一种基于角度的波长选择传递函数，该传递函数的提出由于表面等离子体的耦合条件，第二个传递函数是光场通过金属薄膜结构时，金属薄膜上的光栅结构对于光场起着透射增强的作用。最后模拟了经过这两个传递函数后的光场所形成点物的像。

Holography is a technique providing three dimensional imaging. Unlike common photograph, holography records the amplitude and phase of optical field in the same time. General holography cannot record the real color of the object. The following color holographies developed after that, such as Rainbow holography, Volume holography, still have some defects, and cannot reflect the real color information of the recoded object perfectly. Recently based on surface plasmon was proposed a real color holography, and in the experiment obtain the real color information of the recoded object. In this paper, at first review the principle of holographic optical and the principle of surface plasmon. According to the existing two surface plasma holographic experiment, through the theoretical analysis of the optical properties of metal film and metal grating, the corresponding transfer function is given. The first transfer function is a wavelength selection transfer function based on angle. Raising this transfer function because the coupling condition of surface plasmon. The second transfer function is when the light field through the metal film, the grating on the metal film has the function of enhanced transmission. At last, simulate the picture of point object's hologram using the light field after multiplied by the two transfer function.