# US 2017/0254751 A1 · High-sensitivity metamaterial nano-sensing system with ultra-narrow line width spectral response > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0254751 A1 - Document ID: US20170254751A1 - Status: Published application - Kind: A1 - Application number: 15/071,988 - Filed: 2016-03-16 - Published: 2017-09-07 - Earliest claimed: 2016-03-01 - Assignees: Xi'an Institute of Optics and Precision Mechanics of Cas - Applicants: Xi'an Institute of Optics and Precision Mechanics of CAS - Inventors: Wenfu ZHANG; Guoxi WANG; Lingxuan ZHANG; Wei ZHAO - Web page: https://patentgrep.com/patent/US20170254751A1 ## CPC - G01N 21/554: {detecting the surface plasmon resonance of nanostructured metals, e.g. localised surface plasmon resonance} - B82Y 20/00: Nanooptics, e.g. quantum optics or photonic crystals - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES ## Abstract The invention relates to a metamaterial nano-sensing system, and in particular to a high-sensitivity metamaterial nano-sensing system with an ultra-narrow line width spectral response. The system includes an input light path, a metamaterial nano-sensing unit and an output light path which are sequentially provided along a direction of a light path, and the metamaterial nano-sensing unit includes a Bragg grating and a metallic periodic array arranged above the Bragg grating. The nano-sensing system provided by the invention has an ultra-narrow line width spectral response, so that sensitivity of a nanosensor is effectively improved, and broad application prospect in the fields of portable biosensing, drug development and detection, environment monitoring and the like is ensured. ## Claims ### Claim 1 A high-sensitivity metamaterial nano-sensing system with an ultra-narrow line width spectral response, comprising an input light path, metamaterial nano-sensing unit and output light path which are sequentially provided along a direction of a light path, wherein the metamaterial nano-sensing unit comprises a Bragg grating and a metallic periodic array arranged above the Bragg grating. ### Claim 2 (depends on 1) The high-sensitivity metamaterial nano-sensing system with the ultra-narrow line width spectral response according to claim 1, wherein the Bragg grating is formed by dielectric layers which are made from two different materials and arranged sequentially and alternately. ### Claim 3 (depends on 2) The high-sensitivity metamaterial nano-sensing system with the ultra-narrow line width spectral response according to claim 2, wherein the metallic periodic array is a sub-wavelength metallic periodic array. ### Claim 4 (depends on 3) The high-sensitivity metamaterial nano-sensing system with the ultra-narrow line width spectral response according to claim 3, wherein the metallic periodic array is of a grating structure, a cylinder array structure or a cube array structure. ### Claim 5 (depends on 4) The high-sensitivity metamaterial nano-sensing system with the ultra-narrow line width spectral response according to claim 4, wherein a metal in the metallic periodic array is a metallic material capable of exciting a surface plasmon and a Tamm excimer. ### Claim 6 (depends on 1) The high-sensitivity metamaterial nano-sensing system with the ultra-narrow line width spectral response according to claim 1, wherein there is one or more metallic periodic arrays. ### Claim 7 (depends on 6) The high-sensitivity metamaterial nano-sensing system with the ultra-narrow line width spectral response according to claim 6, wherein the input light path comprises a light source and a collimation equipment, and the collimation equipment is located between the light source and the metamaterial nano-sensing unit; and the output light path comprises a photoelectric detection equipment and a display equipment, and the photoelectric detection equipment is located between the metamaterial nano-sensing unit and the display equipment. ### Claim 8 (depends on 7) The high-sensitivity metamaterial nano-sensing system with the ultra-narrow line width spectral response according to claim 7, wherein the light source is a continuous laser light source, a swept source, a white light source or another light source capable of exciting the surface plasmon and the Tamm excimer; and the photoelectric detection equipment is a spectrograph or other equipment with a spectral analysis function. ### Claim 9 (depends on 8) The high-sensitivity metamaterial nano-sensing system with the ultra-narrow line width spectral response according to claim 8, wherein a substrate is arranged below the Bragg grating. ### Claim 10 (depends on 2) The high-sensitivity metamaterial nano-sensing system with the ultra-narrow line width spectral response according to claim 2, wherein there is one or more metallic periodic arrays. ### Claim 11 (depends on 3) The high-sensitivity metamaterial nano-sensing system with the ultra-narrow line width spectral response according to claim 3, wherein there is one or more metallic periodic arrays. ### Claim 12 (depends on 4) The high-sensitivity metamaterial nano-sensing system with the ultra-narrow line width spectral response according to claim 4, wherein there is one or more metallic periodic arrays. ### Claim 13 (depends on 5) The high-sensitivity metamaterial nano-sensing system with the ultra-narrow line width spectral response according to claim 5, wherein there is one or more metallic periodic arrays.