17 results about "Surface plasmon" patented technology

The application discloses a kind of low reflection high adhesive photo surface treatment method, successively contain photo surface plasma treatment, UV film solution coating solidification, film outer surface plasma treatment etc., core is in UV film solution adding silane coupling agent type passivator;Photo surface uses atmospheric pressure plasma treatment, film outer surface uses low temperature plasma treatment, by controlling plasma treatment power, speed, working gas etc., realize the micro-nano rough structure construction of photo and film outer surface.The application utilizes double plasma treatment to realize physical roughening and reduce reflection, realizes the stability and chemical coupling of plasma activated surface by passivator, greatly improves the bonding strength of photo and film layer, and finally prepared film encapsulation photo film layer transmittance is greater than or equal to 90%, 60 degree glossiness is 10~30GU, while realizing low reflection effect without losing transparency, also has excellent wear resistance, bending performance.

The application provides a surface plasmon photolithography device and a preparation method for improving imaging aspect ratio, which can be applied to the fields of integrated circuit manufacturing and photolithography technology. The surface plasmon photolithography device comprises a metal reflection layer, an optical metamaterial photoresist layer and a mask layer which are sequentially stacked from bottom to top; wherein the optical metamaterial photoresist layer comprises a photoresist and a metal nanoparticle array embedded in the photoresist, the metal nanoparticle array comprises at least one metal nanoparticle layer, and the metal nanoparticle layer is composed of metal nanoparticles arranged periodically; the metal nanoparticle layer is arranged in parallel to the mask layer, wherein when the metal nanoparticle layer comprises a plurality of metal nanoparticle layers, the different metal nanoparticle layers are located in different planes. The application further provides a preparation method of the surface plasmon photolithography device for improving imaging aspect ratio.

This invention provides an adjustable notch filter based on a ridge waveguide SSPP structure, relating to the field of wireless communication technology. By introducing independent planar adjustable notch units into the ridge waveguide SSPP structure, the notch frequency can be continuously adjusted without compromising the surface wave propagation characteristics and frequency-selective transmission response of the SSPP. The SSPP structure is formed by periodically etching multiple grooves along the propagation direction on a metal ridge, with continuous portions of the metal ridge maintained between adjacent grooves. These periodic grooves modulate the dispersion characteristics of the electromagnetic field within the ridge waveguide, enabling the ridge waveguide to support equivalent surface plasmon wave propagation, thereby forming a stable frequency-selective transmission response within a predetermined frequency range. The planar adjustable notch unit constructs a main transmission path and a secondary transmission path, utilizing the destructive interference of the two paths at a specific frequency to create a notch effect. Simultaneously, by changing the equivalent capacitance value of the varactor diode, the notch frequency can be continuously adjusted within the predetermined frequency range.

The present disclosure relates to the field of semiconductor technology, and more particularly to a semiconductor process chamber and semiconductor process equipment. The semiconductor process chamber includes a chamber body, a carrier, a magnetron assembly, a bias magnetic field assembly, and a magnetic shielding member. The bias magnetic field assembly is located inside the chamber body and surrounds the carrier. The magnetic shielding member is located above the bias magnetic field assembly and is configured to guide the bias magnetic field above the bias magnetic field assembly, thereby reducing the magnetic field coupling of the bias magnetic field assembly and the magnetron assembly. The semiconductor process equipment includes the above semiconductor process chamber. The semiconductor process chamber and semiconductor process equipment can reduce or even avoid the magnetic field coupling superposition of the bias magnetic field assembly and the magnetron assembly, ensuring the uniformity of plasma concentration and sputtering rate on the target surface as much as possible, reducing or even avoiding abnormal fluctuations in voltage applied to the target, and ensuring the uniformity of the corrosion depth on the target surface and the uniformity of the magnetic thin film deposited on the surface of wafer.

The application discloses a Ce-doped Co-MOF derived CuO composite oxide catalyst and a preparation method thereof, and belongs to the technical field of catalytic materials. The preparation method comprises the following steps: S1, obtaining rare earth waste residue containing Ce elements and Co elements, and processing the rare earth waste residue to obtain a cerium salt solution and a cobalt salt solution; S2, mixing the cerium salt solution and the cobalt salt solution with an organic ligand to prepare a Ce-Co-MOF precursor; S3, performing calcination and annealing treatment to obtain a Ce-Co-O porous composite oxide carrier; S4, preparing a copper salt solution, impregnating the Ce-Co-O porous composite oxide carrier with the copper salt solution, and then performing drying and calcination treatment to obtain a CuO@Ce-Co-O composite oxide; and S5, performing surface plasmon activation treatment to obtain the Ce-doped Co-MOF derived CuO composite oxide catalyst. The application can realize high-value utilization of rare earth resources and precise structure regulation of catalytic materials, and the prepared catalyst can exhibit excellent activity and stability in a low-temperature CO oxidation reaction.

A terahertz leaky wave antenna based on magnetic surface plasmonic devices, belonging to the field of terahertz device technology, employs a terahertz unidirectional transmission waveguide constructed by sequentially stacking a metal layer, a dielectric layer, and a magnetized semiconductor layer from top to bottom. A subwavelength periodic groove structure is set at the interface between the dielectric layer and the magnetized semiconductor layer to introduce the unidirectional transmission mode into the optical cone, forming a fast-wave mode. Narrow slits with the same period as the grooves are formed in the metal layer as a leaky wave structure, enabling efficient radiation of the waveguide mode into free space. By applying a static magnetic field to the magnetized semiconductor layer, non-reciprocal unidirectional transmission is achieved and backscattering is suppressed. The antenna can achieve wide-angle beam scanning by changing the operating frequency or the applied magnetic field strength. This invention also provides a previously summarized optimization method for terahertz leaky wave antennas based on magnetic surface plasmonic devices, by periodically adjusting the slit width and dielectric layer thickness. This invention features a compact structure, high integration, and combines unidirectional transmission, efficient radiation, and beam control capabilities.

This invention provides a method for preparing and applying a long-lasting photocatalytic antifouling coating material, belonging to the field of marine antifouling coating technology. This invention uses an improved wet chemical reduction method to prepare an Ag@CuGaO heterojunction photocatalytic antifouling agent. This material is a nanocubic structure of CuGaO modified with Ag nanoparticles, with a silver loading of 0.5~10wt%. It combines the small size effect of Ga doping with the surface plasmon properties of Ag, which can broaden the light absorption range and improve carrier separation efficiency. 1~5 parts by weight of this antifouling agent are compounded with 100 parts by weight of organosilicon resin, and an organosilicon antifouling coating is prepared after substrate pretreatment, ultrasonic dispersion, curing and degassing, and spin coating curing. The coating of this invention achieves integrated antifouling and antibacterial properties, with an immediate bactericidal rate of 99% against Staphylococcus aureus and Pseudomonas aeruginosa, and an antibacterial rate of >90% after 60 days in a simulated marine environment. It effectively solves the problems of photocorrosion, short antifouling cycle, and poor mechanical properties of traditional photocatalytic materials, and is suitable for preventing biofouling on metal surfaces of marine facilities. The process is green and economical.

This invention relates to the field of biomedical detection technology and provides a method for glucose detection based on a hollow antiresonant optical fiber using a polylysine and phenylboronic acid composite membrane. The detection method includes a light source, an optical fiber isolator, a first single-mode optical fiber patch cord, a microfluidic device, a hollow antiresonant optical fiber, a second single-mode optical fiber patch cord, a spectrometer, and a computer. The hollow antiresonant optical fiber is fabricated using a stacked drawing and pressure-assisted splicing process. Gold wires are filled within two selected symmetrical small antiresonant tubes, and the outer wall of these tubes is coated with a polylysine and phenylboronic acid composite membrane. The microfluidic device integrates filtration, temperature control, flow rate control, and pressure monitoring functions. When the polylysine and phenylboronic acid composite membrane specifically binds to glucose molecules in the test solution, the refractive index of the composite membrane is changed, further altering the resonance conditions of surface plasmon resonances, ultimately causing a quantitative shift of the loss peak. The spectrometer collects data, and the computer analyzes the glucose concentration. This method features high sensitivity, strong specificity, good anti-interference, good stability, and integration, providing a new solution for glucose detection and meeting the needs of medical testing and health monitoring.

Nanowire-based sensors may include an array of nanowires attached to a substrate. The nanowires may have a cladding and are configured to selectively direct incident light into the substrate to interact with surface plasmons at a metal layer on the surface of the substrate. Nanowire-based sensors may include an array of nanowires coupled to their respective closest neighbors. The nanowires may be arranged in a spiral, a half coil, a full coil in the order of increase radii.

The application provides an optical phased array radar beam scanning technology and a waveguide preparation method, and belongs to the field of optical waveguide laser radars.The application uses a doped material as a cladding layer, changes the electrical characteristics of the material by controlling the doping type and doping concentration in the cladding layer, and makes the material into an electrode, the core layer of the optical waveguide adopts an intrinsic layer without doping, a high resistance characteristic of the intrinsic layer is utilized, a sufficient voltage is loaded on the waveguide layer, a sufficient electric field is formed, and the electric-optical effect is utilized to scan the angle of a surface plasmon incident light beam.The optical phased array radar beam scanning technology is used for the surface plasmon incident angle regulation, is beneficial to plasmon wave vector matching and accurate regulation of the incident angle, the optical phased array radar beam scanning technology and the waveguide preparation method for regulating the surface plasmon incident angle are simple, are widely applied, and have important significance for the development of microscopic, sensing and measuring fields.

This invention discloses a method for preparing a highly biocompatible and active filler and its application in water treatment, comprising the following steps: S1, matrix preparation; S2, hydrogel coating solution preparation; S3, coating; S4, surface treatment. This invention significantly improves the biocompatibility and microbial activity stimulation of the filler through coupled magnetic doping, pre-coating with active components, and surface plasma cleaning modification, thereby enhancing the efficiency of microbial metabolic activity enhancement. The resulting filler structure comprises: a polyethylene matrix + an NdFeB magnetic functional core + a biomimetic hydrogel signal coating + a plasma-modified surface, forming a multi-layered, multifunctional integrated filler.

This invention discloses a recurrent neural network physical architecture based on artificial surface plasmon supercells, relating to the interdisciplinary fields of metamaterials, surface plasmons, and brain-like computing. The architecture consists of multiple identical planar network layers stacked sequentially in the vertical direction. Each layer includes a dielectric substrate (1), an SSPP supercell array (2), a bi-line divider (3), and a combiner (4). The SSPP supercell array is connected to inter-layer feedback links via vias. Its output is divided into an output path and a feedback path by a bi-line divider. The feedback path integrates an RF amplifier (5) for gain compensation and transmits the signal across layers to the combiner in the next layer for vector superposition with the new input signal. This architecture integrates temporal feature extraction, nonlinear modulation, and recursive computation, possessing ultra-high-speed parallel processing capabilities, and can effectively realize deep fusion and associative decision-making of multimodal information based on the nonlinear coherence effect of SSPP waves.

The invention relates to a method for preparing colored materials by heterogeneous nucleation of metallic nanoparticles, said nanoparticles having optical properties based on the surface plasmon phenomenon. The invention also relates to said colored materials obtained, as well as compositions comprising them. In particular, the method for preparing the colored particulate material by heterogeneous nucleation includes, notably, mixing at room temperature a suspension comprising: - at least one salt of a metallic element, said metallic element having a plasmonic effect, - at least one reducing agent, and - at least one particulate substrate, said mixture of the suspension forming a colored particulate material.

This invention belongs to the field of solar cell laser processing technology, specifically relating to a method for precise laser-assisted processing of solar cells. The invention involves preparing a transparent conductive film on the surface of a non-planar substrate, then fabricating a metal layer on the surface of the transparent conductive film using thermal evaporation, PS microsphere etching, or metal nanoparticle colloid coating. A flat-top laser is then used to process the metal layer, utilizing the evanescent wave characteristics of the surface plasmon resonance effect to modify the transparent conductive film. Finally, the metal layer is recovered by dissolving it with an organic acid. This invention utilizes the evanescent wave characteristics of the surface plasmon resonance effect to achieve localized focusing of laser energy, precisely heating the shallow surface material. The small range of the surface plasmon effect allows heating only the shallow surface layer, thus avoiding thermal damage to the subsurface or bottom substrate, achieving precise surface modification. It is applicable to laser processing of different transparent materials and different substrate types, exhibiting strong process adaptability.

This application proposes a kanamycin U-shaped fiber optic sensor, its fabrication method, and a fiber optic sensing system, belonging to the field of sensor detection technology. The sensor includes: a fiber core, a cladding, a silver film, a polydopamine layer, silver nanoparticles, a kanamycin aptamer, and mercaptohexanol. The silver film serves as a metal-sensitive layer, used to achieve wave vector matching between free electrons on the surface of the silver film and evanescent waves to excite plasmon resonance on the surface of the silver film. The polydopamine layer is used to immobilize the silver nanoparticles. The silver nanoparticles are used to excite the LSPR effect and to modify the surface of the kanamycin aptamer. Mercaptohexanol is used to fill non-specific binding sites. The kanamycin aptamer binds to kanamycin to change the refractive index of the fiber surface, thereby altering the resonance conditions between the evanescent wave and the surface plasmon wave, causing a redshift of the resonance wavelength. The sensor of this application shortens the response time of the kanamycin U-shaped fiber optic sensor, is simple to fabricate, and is small in size and lightweight.