Surface Plasmon Dynamic Holography Based On Refractive Index Modulation

The traditional optical holography is composed of two independent parts, which are the recording and reconstruction of the wavefront. But limited to the recording medium and method of taking pictures of moving object hologram, holographic display can only be static. This approach has its own problems in application of the three-dimensional display device. At present, the dynamic holographic display is mainly based on the digital holographic method and spatial light modulators, new types of holographic materials are utilized to realize the dynamic reconstruction of the 3D image. However, the development of dynamic holography is very slow due to limited size of the display, resolution of the holographic materials and the problem of eliminating the zero order diffraction. The imaging method based on surface plasmon holography can effectively solve the above problems, so it is expected to become the next generation of three-dimensional display technology and has a good application prospect.In this paper, the three-dimensional dynamic holographic display is set as a goal. The interference process of surface plasmon holography and dynamic holographic method of localized surface plasmon resonance based on electro-optic modulation are mainly studied. All of these provide a theoretical support for the application of surface plasmon in computer-generated holography and dynamic holography. The main research works of this paper are listed as follows:1. Analyzing the interference process of object scattering light with different spatial frequency and surface plasmon based on the optical interference theory. Then building up the recording theory of surface plasmon holographic interference fringes.2. Applying the finite element method to simulate the static holographic process of surface plasmon based on the prism coupling structure. Analyzing the influence of the factors such as the thickness of the metal and recording dielectric layer on the interference fringes and the reconstruction results.3. Study on design method of hologram based on the localized surface plasmon resonance. Simulating reconstruction process of the hologram.4. Design of a dynamic holographic scheme of localized surface plasmon based on the electro-optic modulation. Then analyzing the modulation effect of refractive index on incident beam.