• 专利标题:   Wavelength controlled graphene super-surface photonic crystal surface wave optical device used in field of e.g. optical communication, has film structure element provided with dielectric substrate and dielectric material layer, and graphene super surface is provided with micro-nano structure array.
  • 专利号:   CN115469400-A
  • 发明人:   LIU Q, YIN R, KONG W
  • 专利权人:   UNIV TIANJIN TECHNOLOGY EDUCATION
  • 国际专利分类:   G02B001/00, G02B005/00, G02B006/122
  • 专利详细信息:   CN115469400-A 13 Dec 2022 G02B-006/122 202204 Chinese
  • 申请详细信息:   CN115469400-A CN11038357 29 Aug 2022
  • 优先权号:   CN11038357

▎ 摘  要

NOVELTY - The device has a graphene super surface sandwiched between a coating layer and a multilayer film structure element. The multi-layer film structure element is provided with a transparent dielectric substrate and a multi-layer dielectric material layer. The multi-layer dielectric material layer is provided with a high refractive index dielectric material layer and a low refractive index dielectric material layer that are alternately overlapped. The graphene super surface is provided with graphene micro-nano structure array. The medium material with high refractive index is titanium dioxide, silicon nitride, zinc sulfide, cerium oxide and zirconium oxide. The low refractive index dielectric material is silicon dioxide, magnesium difluoride, cryolite. USE - Wavelength controlled graphene super-surface photonic crystal surface wave optical device used in field of optical communication, optical storage and photoelectric device and optical sensing and detection. ADVANTAGE - The refractive index or thickness of the coating layer or a certain layer structure is adjusted, the input light at the specific angle is incident on the surface of the optical device. The significantly enhanced light field is limited on the graphene surface, enhances the interaction of the graphene and the light. The super-surface micro-nano structure is used to control the transmission and space distribution of the photonic crystal surface wave light field, modulates amplitude, phase and frequency response, realizes frequency selection and wavelength control effect to obtain the photon crystal surface wave effect with obviously improved sensing sensitivity. DESCRIPTION OF DRAWING(S) - The drawing shows a structure schematic diagram of the wavelength controlled graphene super-surface photonic crystal surface wave optical device used in field of optical communication, optical storage and photoelectric device and optical sensing and detection. (Drawing includes non-English language text). 3Ng=