Method for preparing optical thin film with gold silver nanometer particle and dispersal oxide

Abstract

The invention provides a method for making an optical film of scattering oxidants by gold and silver nanometer particles, belonged to the art of metal nanometer particle and inorganic non-metallic material composite technique. Au, Ag and oxidants as the three sputtering targets settle in the sputtering equipment, in which positioned a blinder in front of each sputtering target and base plate, controlled independently the sedimentation velocities of the metal and oxidants, to prepare composite films of gold and silver pure metal nanometer scattering oxidants, which is of nano layered structure; the specific steps are as follows: preparing a nanometer particle monolayer film of Au or Ag, then depositing an oxide film, and another nanometer monolayer film of Au or Ag, then another oxide film. Alternate depositing according to such priority to get a composite film of gold and silver pure metal nanometer scattering oxidants, which is of nano layered structure. The advantage lies in the excellent non-linear optical characteristic.

Description

technical field [0001] The invention belongs to the technical field of composite materials of metal nanoparticles and inorganic non-metallic materials, and in particular provides a design and preparation process of gold and silver pure metal nanoparticles dispersed oxide multilayer nonlinear optical film. Background technique [0002] Nano-metal particles dispersed oxide film, due to the surface effect and quantum size effect of metal nanoparticles are very significant, surface plasmon resonance occurs under the interaction of electrons and light near the surface of nano-metal particles, and selectively absorbs and transmits incident light waves. Pass. Functional thin films with such nonlinear optical properties have broad application prospects in the field of optical communications as optical wave splitters and optical switches. [0003] In order to obtain strong nonlinear optical effects, it is generally achieved by changing the size, shape, dispersion concentration and m...

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Problems solved by technology

However, our patent applications and research are limited to a gold nanoparticle or silver nanoparticle dispersed oxide system, and reports on gold-silver composite metal particle dispersed oxide films are relatively rare

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