Color nano printing device based on micro-nano polarizer and F-P cavity structure

Abstract

The invention discloses a color nano printing device based on a micro-nano polarizer and an F-P cavity structure. A laminated super-surface comprises a substrate, a metal nano-brick array and an F-P cavity array. Based on a metal surface plasmon resonance effect, a polarization-separated metal nano-brick structure can be designed through the specific metal nano-brick size; and a micro-nano F-P array structure with a narrow-band filtering effect can be designed based on a wavelength selection mechanism of the F-P cavity. The metal nano-brick array can be used as a polarizer of blue light, greenlight and red light wave bands under different working states, has a broadband spectral response and intensity modulation function, the micro-nano F-P cavity array with a wavelength selection effectis superposed, and an ultra-narrow band micro-nano polarizer can be constructed and used for realizing a color nano printing function. The color nano printing device provided by the invention can realize wide color gamut, continuous gray-scale modulation and high-resolution color image printing / display, can be widely used in the fields of information encryption, optical anti-counterfeiting, copy painting and the like, and has the prominent advantages of being flexible in design, simple in processing, compact in structure and the like.

Description

technical field [0001] The invention relates to the field of micro-nano optics and polarization optics, in particular to a color nano-printing device based on a micro-nano polarizer and an F-P cavity structure. Background technique [0002] Metasurface has a subwavelength structure and is a two-dimensional artificial material that can precisely control the physical properties of electromagnetic fields such as amplitude, phase, and polarization state. Therefore, it is used to design planar optical devices. Currently, color nanoprinting technology based on metasurfaces been widely studied. Limited by the principle of structural color itself, most color nano-printing technologies based on metasurfaces rely on the size parameter characteristics of micro-nano structures, so they can only produce a limited number of colors, and use colors similar to the original image for color display. Obvious color difference, compared with the traditional color printing technology, far away. ...

AI Technical Summary

Problems solved by technology

Limited by the principle of structural color itself, most color nano-printing technologies based on metasurfaces rely on the size parameter characteristics of micro-nano structures, so they can only produce a limited number of colors, and use colors similar to the original image for color display. Obvious color difference, compared with traditional color printing technology, far away

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