An optical element containing structured nanoparticles and a method for making the same

Abstract

The invention relates to an optical element containing structured nanoparticles and a manufacturing method of the optical element. The optical element comprises a matrix; nanoparticles are arranged inthe matrix; the nanoparticles are in controlled three-dimensional structure distribution; the focusing and the like of visible light can be modulated on the basis of the differences of the light transmittances, reflection rates and refractive indexes of the nanoparticles and the matrix. According to the manufacturing method of the optical element of the invention, an incident wavelength, a mothersolution and nanoparticles are determined; the modulation mode of the optical element for an optical path is determined; the due periodic arrangement mode of the nanoparticles is calculated through simulation; the nanoparticles are arranged in the mother solution, stirring or ultrasonic water bath treatment is carried out, so that the nanoparticles can be evenly distributed in the mother solution; a structure field is applied to the mother solution containing the nanoparticles, and the nanoparticles are manipulated, and therefore, the controlled three-dimensional structure distribution of thenanoparticles in the mother solution is realized; and the mother solution is solidified into a matrix, and therefore, the optical element containing structured nanoparticles can be obtained. The optical element and the manufacturing method thereof of the invention have the advantages of designability, simple modulation, low cost and the like.

Description

technical field [0001] The invention belongs to the technical field of micro-nano manufacturing of nanostructures, in particular to an optical element containing structured nanoparticles inside and a manufacturing method thereof. Background technique [0002] With the development of optical technology, optical lens, as a typical optical device, has been used more and more widely. Under the framework of geometric optics, traditional optical imaging lenses are limited by strict geometric relationships, and need to rely on the shape of the lens surface and natural optical materials to achieve catadioptric imaging, resulting in low degrees of freedom in optical lens design and large volume and mass, which is not conducive to optoelectronic technology and applications. Integration, lightweight and miniaturization development needs. With the development of nano-fabrication technology, optical imaging technology ushered in a new leap again. By making some micro-nano structures on...

AI Technical Summary

Problems solved by technology

[0003] Although micro-nano structures on the surface of the lens have the advantages of light weight and extremely thin thickness, most of the materials used are metals or high-refractive index dielectric materials, such as gold and silicon, and the process of making micro-structures on the surface requires coating Photolithography steps such as glue, exposure, development, and etching are cumbersome and require high material costs

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