▎ 摘　　要

NOVELTY - The element comprises a polarizer, a lithium niobate crystal and an analyzer. The two symmetrical sides of the lithium Niobate crystals are respectively provided with polarizers and analyzers on both sides. One side of the LiNiobate crystalline close to the analyzer is processed into a nano-grating, and the nano-graphene is parallel to the optical axis of the NiNiB crystal. The light is received by the detector after passing through the polarizer, the lithiumNiB crystalline and the analyzezer in sequence. USE - Micro light splitting element. ADVANTAGE - The element: adopts ultrafast laser self-organization processing to prepare nano-grating structure in the direction of the lithium niobate crystal parallel to the optical axis, using the color polarization effect of uniaxial crystals, combines the light-splitting capability of small period nanogratings, enhances the color polarization effect, and finally achieves micro-discrimination within 50 x 50 m. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for the preparation method of the micro light splitting element.