▎ 摘　　要

NOVELTY - The utility model claims a multilayer film structure based on Bragg grating/metal film, comprising a ZnS covering layer and an Al film layer, a first Bragg grating is provided between the ZnS covering layer and the Al film layer, a second Bragg grating; LiF spacer layer; the first Bragg grating and the second Bragg grating are periodically provided with a first LiF film layer, a first ZnS film layer, a second LiF film layer, a second ZnS film layer, a third LiF film layer, a third ZnS film layer; a fourth LiF film layer and a fourth ZnS film layer; a graphene film layer is provided between the first Bragg grating and the second Bragg grating. The multi-layer film structure based on Bragg grating/metal film of the utility model has high graphene ultraviolet light absorption rate.