Color printing device based on metal nano brick array and printing method

Abstract

The invention discloses a color printing device based on a metal nano brick array and a printing method. A metal nano brick array structure comprises a substrate and a nano brick array on the substrate. On the basis of a metal surface plasma resonance effect, a polarization separation structure can be designed through specific nano brick sizes; and on the basis of anisotropic characteristics of ametal nano brick-air mixing layer structure, metal nano brick structures with different spectral responses can be designed by changing the duty ratio and sizes of the metal nano bricks. The metal nanobricks with different geometric dimension parameters can serve as polarizers of blue light, green light and red light wave bands, also have functions of light filtering and polarizing beam splittingand are used for realizing the color nano-printing function. The nano brick array can be widely applied to the fields of compact display, optical counterfeiting prevention, information encryption, light storage and the like and can be manufactured only through a simple one-time photolithography technique, thereby having the outstanding advantages of being flexible in design, simple to process, compact in structure and the like.

Description

technical field [0001] The invention relates to the fields of micro-nano optics and polarized optics, in particular to a color printing device and a printing method based on a metal nanobrick array. Background technique [0002] Traditional color printing technology uses multi-color inks, which need to be printed repeatedly to form rich colors, but has the disadvantages of partial color distortion and low resolution, so its application fields are limited. As an energy-saving, environmentally friendly and difficult-to-replicate printing method, inkless color printing is becoming a new direction for the development of printing technology. Inkless color printing adopts micro-processing technologies such as laser writing, holographic technology, electron beam, ultra-precision numerical control processing, and electrochemistry to form digital micro-nano structures on the surface of printed products, resulting in light diffraction, reflection, refraction, and transmission. And ot...

AI Technical Summary

Problems solved by technology

However, because inkless printing technology is limited by its simple light field regulation principle, it is difficult to produce richer colors and complex image information, and the process is complex, bulky, and it is not easy to realize photon integration. There are huge technical obstacles, so the industry urgently needs new technology updates and revolutions

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