▎ 摘　　要

NOVELTY - The probe (35) comprising a needle body and a composite layer (30), where a surface of the needle body is covered by the composite layer. The composite layer comprises a first needle body covering layer (31) and a second needle body covering layer (32). The first needle body covering layer is arranged between the needle body and the second needle body covering layer, where material of the first needle body covering layer comprises optical dielectric material and material of the second needle body covering layer comprises a graphene. An inert layer partially covers a non-tip region of the composite layer. USE - Optical micro-nano antenna probe for use in a probe assembly of a nano infrared spectrometer and a scattering scanning near field optical microscope (all claimed). ADVANTAGE - The optical micro-nano antenna probe enhances nanoIR and s-SNOM sensitivity, which has ability of effectively converging incident infrared light field to a tip of the needle tip so as to improve sensitivity of nanoIR, enhance ability and/or scattering infrared light of the sample radiation infrared light in the nanometer area below the tip. The probe can reduce requirement of the high power infrared laser or under laser power and improve detection sensitivity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: A method for preparing an optical micro-nano antenna probe; A method for depositing a graphene layer on a surface of an optical dielectric material substrate; and A probe assembly. DESCRIPTION OF DRAWING(S) - The drawing shows schematic view of an optical micro-nano antenna probe. 10Cantilever 20Needle body 30Composite layer 31First needle body covering layer 32Second needle body covering layer 35Optical micro-nano antenna probe 101Surface 102Cantilever back optical micro-nano antenna probe surface 103First cantilever covering layer 104Reflecting layer 105Second cantilever covering layer