81 results about "Plasma resonance" patented technology

The invention relates to a cardiovascular disease risk prediction system, which comprises a user terminal module, an edge computing module, a cloud intelligent module, an application service module and a system support module, wherein the user terminal module comprises an intelligent sensing equipment cluster unit and a mobile terminal data entry unit; and the intelligent sensing equipment cluster unit adopts a millimeter wave radar-PPG fusion sensor, monitors subcutaneous 0.5 mm depth arterial vibration through a 60GHz radar array, is aligned with a photoplethysmogram signal in a space-time manner, and performs user data acquisition based on a surface plasma resonance chip. According to the cardiovascular disease risk prediction method and system, real-time signal processing is realized by adopting JetsonAGX through a heterogeneous calculation architecture, medical image accelerated calculation is performed by using NVIDIAClara, non-out-of-domain joint modeling of data of hospitals is supported through federal learning, privacy protection reasoning based on homomorphic encryption is realized, and full-process closed-loop management is realized by adopting a layered modular architecture. And the accuracy of cardiovascular disease risk prediction is improved.

The invention relates to the field of super-hydrophobic materials, in particular to a basalt fiber composite material as well as a preparation method and application thereof. According to the composite fabric material provided by the invention, a multistage micro-nano rough surface of the MoS2 nanoflowers and the silver nanoparticles is constructed on the fiber substrate, so that not only is super-hydrophobic self-cleaning realized, but also the anti-icing performance is relatively high, and particularly, rapid heating is realized by combining broadband absorption of the MoS2 nanoflowers and a local surface plasma resonance effect of the silver nanoparticles; and meanwhile, the silver nanoparticles accelerate heat conduction, so that excellent ice melting capability is obtained. The high conductivity of the silver nanoparticles constructs a conductive path, and the layered structure of MoS2 triggers interface polarization, so that the electromagnetic shielding effectiveness of the X wave band is improved. The dual antibacterial mechanism of the MoS2 nanoflowers and the silver nanoparticles also realizes broad-spectrum efficient antibiosis, the preparation method is green and environment-friendly, the cost is low, and the requirements of complex scenes such as wearable electronic equipment, medical protection, polar region protection and national defense can be met.

The invention discloses a single-groove type photonic crystal fiber sensor based on surface plasma resonance. The single-groove type photonic crystal fiber sensor structurally comprises a fiber core and a perfect matching layer wrapping the fiber core, and circular air holes which are arranged periodically and are different in size are formed in the fiber core; the fiber core is provided with a groove channel, and the lower surface of the groove channel is coated with a gold film and a titanium dioxide film. A loss spectrum is obtained through calculation, and then the wavelength of the surface plasma formant and the sensitivity of the sensor are calculated. The refractive indexes of the to-be-detected analysis liquid sample are different, and the wavelengths of the resonance peaks of the transmission loss spectrum are also different. The refractive index range of a to-be-detected analysis liquid sample of the sensor is 1.39-1.4, the sensitivity of 11000 nm / RIU and the resolution of 9.09 * 10 <-6 > RIU can be obtained, the sensitivity and the resolution of the sensor are superior to those of an existing sensor, and the sensor is simple in structure and easy to operate and has great application prospects in the fields of biosensing, environmental monitoring and the like.

The invention discloses a Mini LED package test method and test equipment. The method comprises the following steps: performing light irradiation on Mini LED package by using a reverse light path tracking technology to obtain an interference pattern and determine a function sensitive area; injecting a quantum dot fluorescent marker into the functional sensitive area to carry out multispectral dynamic monitoring; performing surface plasma resonance spectrum scanning on the functional sensitive area to obtain surface plasma resonance response data; performing an acoustic stimulation test on the functional sensitive area according to the obtained data to obtain acoustic response data; and performing a compensation test by using the nonlinear optical material layer to obtain performance attenuation prediction data. According to the technical scheme, accurate detection and performance prediction of the miniature optical structure in Mini LED packaging are achieved, and potential early failure symptoms can be effectively recognized.

The invention provides a method for detecting an external vesicle marker through high-flux nano plasma exciting light immune color development, and belongs to the technical field of human extracellular vesicles. After a serum sample is subjected to centrifugal treatment, the serum sample and a CD81 capture antibody substrate are incubated, and the particle size distribution of the vesicles is monitored in real time; a zwitterionic polymer modified gold nanoparticle LAM detection probe and a polyethylene glycol modified silver nanoparticle LprG detection probe are prepared to be specifically combined with a vesicle surface antigen, a chromogenic enhancement solution is adopted to induce a plasma resonance signal, and full-hole scanning imaging is carried out; and constructing a double-layer game optimization model to cooperatively optimize the detection sensitivity and the signal stability, carrying out weighted summation on normalized signals of the particle size subgroups to obtain comprehensive detection signal intensity, comparing the comprehensive detection signal intensity with a threshold value, and outputting a final judgment result. The technical problem that quantitative accuracy is affected by signal intensity deviation caused by vesicle particle size difference in outer vesicle marker detection is solved.

The invention belongs to the technical field of surface enhanced Raman spectroscopy, and particularly relates to a high-activity surface enhanced Raman scattering substrate as well as a preparation method and application thereof. Comprising the following steps: by utilizing a three-phase liquid-liquid interface self-assembly method, adding dichloromethane into an AuNPs dispersion liquid, uniformly mixing, adding a halide salt solution, uniformly mixing to form a mixed solution, then adding normal hexane into the mixed solution, standing, performing interface self-assembly until a gold nano-film is formed on a liquid surface, fishing out the gold nano-film, and drying to obtain the gold nano-film. The high-activity surface enhanced Raman scattering substrate is obtained. According to the method, the halide salt solution is innovatively introduced in the self-assembly process of the AuNPs, so that the assembly arrangement mode of the AuNPs is remarkably changed, the AuNPs are arranged more tightly, local surface plasma resonance coupling is enhanced, more hot spot areas are generated in a unit area, and the sensitivity of the self-assembly nano array SERS substrate is effectively improved.

The invention relates to the technical field of biosensing, and discloses an ultra-sensitive biosensor as well as a preparation method and application thereof. The ultra-sensitive biosensor comprises a substrate, a two-dimensional material loaded on the substrate, DNA origami loaded on the two-dimensional material and quantum dots modified on the DNA origami, wherein the DNA origami contains an exposed single-stranded DNA fragment, and the single-stranded DNA fragment can be cut by an activated Cas protein; the quantum dots are connected with the tail ends of the single-stranded DNA fragments. The ultrasensitive biosensor is excellent in performance, and compared with a conventional pure optical biosensor combining surface plasma resonance and DNA origami, the sensitivity of the ultrasensitive biosensor is improved by four orders of magnitude and can reach the aM level.

The invention provides a plasma resonance enhanced microstructure of an infrared photoelectric detector and a preparation method, and belongs to the technical field of medium-wave infrared photoelectric detectors, and the method comprises the steps: enabling incident light to irradiate downwards from the upper part of a top resonance layer when the medium-wave infrared photoelectric detector is used, and enabling the incident light to irradiate downwards from the lower part of the top resonance layer; the bottom resonance layer, the dielectric blocks and the top resonance layer form an array-arranged microstructure which can excite a plasmon mode, a surface plasmon resonance effect is triggered near the surface of the photosensitive layer through the combined action of the top resonance layer and the bottom resonance layer, the dielectric blocks are embedded in the bottom resonance layer, and the surface plasmon resonance effect is achieved. Incident light is localized in a shallower depth in a photosensitive surface, the intensity of a local electric field is enhanced, the reflection phenomenon of the photosensitive surface is reduced, the light absorption rate of the detector is improved, and the quantum efficiency of the medium-wave infrared photoelectric detector is further improved.

The invention relates to the field of photoelectrocatalytic materials, and discloses a photoelectrocatalytic material and a preparation method and application thereof.The photoelectrocatalytic material is formed by a bismuth molybdenum oxide and nickel-doped cobalt oxide heterostructure, the surface plasma resonance effect of gold nanoparticles and a conductive network of nitrogen-doped graphene and carbon quantum dots are combined, and a graded micro-nano structure is constructed; according to the present invention, the material has characteristics of high light current density, low charge transfer resistance and excellent catalytic activity and long-term stability in liquid-phase degradation and gas-phase oxidation through the built-in electric field and the optimization of the conductive network, such that the material has characteristics of high light current density and low charge transfer resistance, and can be used in liquid-phase degradation and gas-phase oxidation. The material is widely applicable to the fields of pollutant degradation, gas conversion, water photoelectrolysis and the like, and an efficient solution is provided for innovative development of a photocatalysis technology.

The invention discloses a manufacturing process of a COB (Chip On Board) process circuit board for photoelectric display. The manufacturing process comprises the following steps: performing constant-amplitude direct-current driving on a light-emitting chip array before injection of packaging glue to obtain full-board light field baseline data; the refractive index distribution of the packaging adhesive is regulated and controlled through multi-phase current pulses after the packaging adhesive is injected; forming a composite structure of a high-refractive-index chip interconnection interface and a low-refractive-index packaging surface by using Joule heat in a packaging adhesive crosslinking stage; the metal surface roughness is adjusted through nanosecond cosine pulses so as to control the plasma resonance characteristic; and finally, carrying out fine adjustment on the local refractive index by utilizing the interaction of the moving ions and the polar side chain. According to the technical scheme, stable refractive index distribution can be formed in the chip packaging structure through multi-physics field coupling regulation and control, formation of sub-wavelength stray light waveguides is effectively restrained, the problems of dynamic color cast and brightness flicker in an ultra-small pixel pitch COB display device are solved, and the optical performance consistency of the device is improved.

The invention belongs to the technical field of photocatalysis, and particularly relates to a nano mesoporous Ir / TiO2 crystal as well as a preparation method and application thereof. According to the preparation method, a precursor Ir / K2Ti8O17 is prepared through a hot solvent method firstly, then formic acid is utilized to etch the precursor to form a nano mesoporous Ir / TiO2 crystal, Ir nano particles are evenly distributed, the size is 1-3 nm, and the surface of the crystal has rich (101) high-activity crystal faces and oxygen vacancy defects. According to the crystal, the light absorption range is remarkably enhanced to the near-infrared region through the local plasma resonance effect, and meanwhile, the mesoporous structure provides a large specific surface area and excellent reactant diffusivity. Compared with a traditional TiO2 catalyst, the nano mesoporous Ir / TiO2 crystal disclosed by the invention shows excellent corrosion resistance and efficient photocatalytic activity in photocatalytic seawater hydrogen production. The method is simple, convenient and efficient, the Ir metal utilization rate is high, the problems that precious metal is poor in dispersity, prone to agglomeration and the like are solved, and the method can be widely applied to the field of photocatalytic hydrogen production and has great significance in promoting green energy technology development.

The invention discloses a perovskite narrow-band photoelectric detector based on local plasma enhancement and a preparation method thereof, and the perovskite narrow-band photoelectric detector utilizes specially-made metal nanoparticles to accurately adjust a local surface plasma resonance band of the perovskite narrow-band photoelectric detector, thereby achieving the purpose of overlapping with a perovskite target narrow-band response range. Therefore, penetrating long-wavelength incident photons and an electromagnetic field around the metal nanoparticles generate strong coupling interaction, light absorption is effectively improved through a near-field enhancement induction excitation effect, light current is remarkably enhanced, a local surface plasmon resonance band is regulated and controlled, harmonious enhancement of a detection wave band is achieved, and the detection sensitivity is improved. And the detection performance regulation and control enhancement in the spectral response range of the photoelectric detector is further realized.

The invention provides a tapering optical fiber hydrogen sensor and a preparation method thereof, and belongs to the field of hydrogen sensors. The sensing part is tightly arranged outside the tapering section in a sleeving manner; the light source inputs optical signals to the optical fiber; the spectrograph measures the characteristic peak position of the spectrum in the optical fiber; the sensing part comprises three layers of film structures from inside to outside, and the excitation layer excites the surface of the optical fiber to generate a plasma resonance effect; the reaction layer is made of a gas sensitive material and reacts with hydrogen; and the catalytic layer catalyzes the gas sensitive material to react with hydrogen. The optical fiber sensor is prepared by adopting a tapering method, the sensitivity of the sensor is greatly improved, a tungsten oxide and gold co-sputtering material is adopted as a gas-sensitive material, and compared with the gas-sensitive material only using tungsten oxide, the response time and the recovery time are greatly improved.

The invention discloses a preparation method and application of an S-type heterostructure material with a plasma resonance effect, and the preparation method comprises the following steps: grinding a precursor material, calcining, collecting solid powder, carrying out reflux purification in deionized water, and collecting white powder; dispersing the white powder in a hydrazine hydrate solution, carrying out solvothermal reaction to obtain a faint yellow solution, repeatedly dissolving and precipitating by respectively using acidic and alkaline reagents, washing and drying to obtain a faint yellow solid product; uniformly grinding the faint yellow solid product, calcining the faint yellow solid product in an atmosphere furnace, and cooling to obtain orange solid powder; and adding the orange solid powder into an organic solvent of a precursor containing a tungsten source, and centrifuging, washing and drying after the solvothermal reaction is finished to obtain the S-type heterostructure material with the plasma resonance effect. The S-type heterostructure material with the plasma resonance effect has relatively high efficiency for simulating separation and removal of uranium species in post-treatment wastewater and shows relatively good anti-radiation stability.

The invention discloses a solution-interface measuring device based on a nano-slit confinement effect, a preparation method and a measuring method, the measuring device comprises a sample preparation layer, the sample preparation layer comprises a silicon substrate, the silicon substrate is provided with two electrodes which are arranged in parallel at an interval based on an MEMS technology, and the upper surfaces of the electrodes are provided with mercaptan self-assembly modification layers; a nano groove is formed between the two electrodes, an inlet of the nano groove is provided with an inclined lead-in surface, and a hydrophilic layer is formed on the surface of the inclined lead-in surface; the online monitoring layer comprises a temperature control module, and thermistor dot matrixes of the temperature control module are arranged at the bottom of the silicon substrate; the optical fiber surface plasma resonance sensor is arranged on the upper surface of the electrode; the pH optical fiber probe is arranged on the side wall of the nano groove; and the signal processing layer comprises an electrochemical impedance spectroscopy circuit board arranged at the bottom of the online monitoring layer. The measuring device can solve the problems that a traditional measuring device is complex in structure, prone to blockage, weak in interface signal and uneven in solution introduction.

The invention provides an ultrasonic parameter adaptive adjustment and cleaning evaluation method in a wafer cleaning process, and relates to the technical field of semiconductor manufacturing, and the method comprises the steps: calculating sound field energy distribution through collecting wafer surface temperature distribution and cavity vibration response data; based on the temperature gradient and the sound intensity gradient, calculating the micro-flow field distribution of the cleaning fluid, and establishing a cavitation bubble collapse characteristic matrix; recognizing and cleaning a dead zone through singular value decomposition of the feature matrix, and controlling a piezoelectric transducer to generate focused ultrasonic waves; meanwhile, the plasma resonance sensor is used for monitoring the surface adsorption characteristic change and evaluating the cleanliness. According to the invention, real-time self-adaptive adjustment of ultrasonic cleaning parameters is realized, and the cleaning uniformity and efficiency are improved.

The invention provides a paper-based SERS (Surface Enhanced Raman Scattering) substrate based on ultrahigh-activity silver nanowires as well as a preparation method and application of the paper-based SERS substrate, and belongs to the technical field of surface enhanced Raman spectrum detection. Silver nanowires which are arranged in order are fixed on the surface of hydrophobic filter paper to regulate and control gaps of the silver nanowires so as to enhance the local electromagnetic field coupling effect, target molecules are induced to be enriched in situ by utilizing the hydrophobic characteristic of the hydrophobic filter paper, and a high-density Au / Ag heterogeneous interface is constructed on the surface of the etched silver nanowires in combination with aqua regia etching and AuNPs self-assembly technologies. The SERS signal intensity is further improved through the synergistic effect of bimetallic plasma resonance, the repeatability of the substrate is improved through neat arrangement of the silver nanowires, the stability is improved by wrapping the silver nanowires with the gold nanoparticles, the detection sensitivity of the paper-based SERS substrate is further improved, and the paper-based SERS substrate is low in preparation raw material price, can be manufactured in a large scale and is suitable for industrial production. The trace substances are very convenient to detect and can be taken at any time when being used.

The invention provides an interlayer surface plasmon resonance biosensor which comprises a patterned substrate, and detection areas which are arranged in an array and are formed by metal layers are formed on the surface of the patterned substrate; the spacing layer is formed in the detection area and comprises capture molecules; the nanometer adhesive tape is compounded on the surface of the patterned substrate, and a metal nanoparticle layer is arranged on one surface, facing the patterned substrate, of the nanometer adhesive tape. The invention further provides a preparation method and application of the interlayer surface plasma resonance biosensor. The nano double-sided adhesive tape is used as a transfer medium, and stable transfer of the metal nanoparticles from the substrate to the adhesive tape can be realized through two-step operation of'attaching-stripping ', so that the transfer difficulty of the metal nanoparticle layer is remarkably reduced, the operation is simplified, and the transfer efficiency is improved. And parameters such as the size, the morphology and the density of the nanoparticles in the sandwich structure can be accurately controlled, and the obtained metal nanoparticle layer is good in stability and can be stored for a long time.

The invention discloses a hyperspectral data analysis method based on a plasma resonance metal film substrate. According to the metal nano-film substrate, scattering and signal absorption of a sample to be detected in a visible spectrum range can be remarkably enhanced through a plasma resonance effect, and meanwhile, a reflection spectrum from the substrate is effectively inhibited. The enhancement mechanism not only can realize a high contrast effect similar to dark field imaging in a reflection mode, but also does not need to use expensive optical components, so that the equipment cost can be effectively reduced. In addition, the hyperspectral data is efficiently processed and analyzed by combining a deep learning technology, and high-sensitivity and high-resolution microscopic hyperspectral imaging analysis is realized. According to the method disclosed by the invention, the spectral characteristic information of the sample can be remarkably enhanced under the condition of relatively low equipment cost, and the spectral information can be accurately and efficiently interpreted. The method is suitable for the fields of biomedicine, material science and environmental monitoring.

The invention relates to the technical field of optical sensing detection, in particular to an intensity modulation sensing method with an optional excitation wavelength and aluminum as a surface plasma resonance material. According to the linear relation between the excitation wavelength and the optimal thickness of the aluminum film, the optimal thickness of the aluminum film with the selected excitation wavelength is obtained; preparing an aluminum film with the corresponding optimal thickness according to a thermal evaporation technology; determining a reflection angle spectrum of the aluminum film through a surface plasma resonance detection system, and calibrating a fixed incident angle of intensity modulation; the medium environment contacted with the aluminum film is changed, the reflection intensity is detected in real time, and the refractive index of the medium environment is obtained according to the linear relation between the refractive index and the reflection light intensity. According to the invention, aluminum is used as a surface plasma resonance material, surface plasma resonance from deep ultraviolet to near infrared is realized, and random selection of excitation light wavelength in the wavelength range is realized by utilizing the approximate linear characteristics of a real part and an imaginary part of the refractive index in the range of 400-700nm.

The invention provides a nano-gold grating transmission type microfluidic sensor based on plasma resonance, and the transmission type sensor includes: a silicon dioxide insulating substrate; a two-dimensional metal grating array formed on the silicon dioxide insulating substrate; a microfluidic cavity of the object to be measured; and a silicon dioxide insulating top cover, and a silicon dioxide grating structure is added, which is formed under the silicon dioxide insulating top cover. The area with strong electric field intensity of the structure is concentrated at the position of the cavity of the object to be measured, and the grating structure enhances the plasma resonance peak. As the period gradually increases, the transmission peak wavelength position of the same resonance mode appears red shifted. The model has the advantages of simple structure, easy large-area preparation, low cost, high sensitivity, easy detection for transmittance sensing, and is expected to become a new type of surface plasmon sensor device.

The invention discloses a UCNPs modified AgNPs (at) MgAl LDH composite material and a preparation method of the UCNPs modified AgNPs (at) MgAl LDH composite material. According to the preparation method, MgAl LDH is synthesized through a solvothermal method, AgNPs is loaded on the MgAl LDH through a reduction precipitation method, and the AgNPs-coated MgAl LDH composite material is successfully prepared; liYF4: Yb and Tm-coated LiYF4 UCNPs are prepared at the same time, the LiYF4: Yb and Tm-coated LiYF4 UCNPs are subjected to hydrophilic modification by adopting a ligand exchange method, and finally the LiYF4: Yb and Tm-coated LiYF4 UCNPs and the LiYF4: Yb and Tm-coated LiYF4 UCNPs are compounded to prepare the AgNPs-coated MgAl LDH / According to the ternary composite system, through surface plasma resonance (SPR) of AgNPs, the up-conversion luminescence effect of UCNPs and the layered structure synergistic effect of MgAl LDH, efficient degradation of TCH can be achieved, and meanwhile a new thought is provided for the near-infrared driven environment restoration technology.

The present invention relates to a terahertz sensor based on surface plasmon resonance, belonging to the field of terahertz sensing technology. The present invention comprehensively considers the reasonable layout and parameter optimization of the dielectric layer, bottom metal plate, and resonator unit to achieve high-sensitivity, high-selectivity, and fast-response sensing performance. The present invention is composed of a periodic array of ring resonators and butterfly resonators, forming a novel integrated sensor. The butterfly resonator is arranged in the middle of four metal ellipses, which can enhance the interaction between electromagnetic waves and substances, thereby improving the sensor performance. Plasma resonance is introduced into the reflection spectrum and a red shift occurs during transverse stretching, achieving high sensitivity and excellent robustness. Moreover, by optimizing the electromagnetic field distribution, the response ability of the sensor to specific frequencies or refractive indices is enhanced, and it can more accurately detect tiny refractive index changes, thereby improving its sensitivity.

The application discloses a kind of induction logging instrument systems and acquisition method based on plasma optical fiber sensor, including ground current emission source and at least one well in current emission source and well in receiving acquisition device, the well in receiving acquisition device is connected with the optical system of induction signal detection being arranged on ground, the optical system is composed of sequentially connected broadband light source, polarizer, polarization controller, fiber optic circulator and spectrum analyzer, the fiber optic circulator is connected with well in receiving acquisition device and spectrum analyzer respectively, at least two plasma resonance optical fiber sensing probes are arranged in the well in receiving acquisition device. There is no mutual interference or crosstalk between plasma resonance optical fiber sensor, optical fiber sensor and emission power supply and antenna, and it is not easy to be disturbed by environmental electromagnetic noise, and multi-channel large data high-speed real-time transmission can be realized by using armored photoelectric composite cable connected with each well in receiving acquisition device.

The invention discloses a multidimensional spectrum real-time voiceprint recognition system based on bionic physical reservoir optical calculation, which comprises an upper computer, a microprocessor and a plurality of synchronous sampling modules, and is characterized in that the synchronous sampling modules are connected with a USART serial port through a control bus; each synchronous sampling module comprises a DAC laser trigger unit, a laser, an ORRAM optical calculation array, a signal amplification unit and an ADC sampling unit which are connected in sequence, and the DAC laser trigger unit and the ADC sampling unit are connected with a USART serial port through a control bus; the ORRAM optical calculation array is composed of an ITO / MoS2 / Ag heterojunction memristor and used for converting the optical pulse sequence into a light current response signal through the synergistic effect of the MoS2 interlayer exciton effect and Ag nanoparticle surface plasma resonance. The method has the remarkable effects that through material innovation, architecture optimization and algorithm collaboration, the multi-dimensional constraint of the prior art is broken through.

The present invention proposes a photoelectric detector integrating ferroelectric polarization and plasma resonance effect and a preparation method thereof, wherein the photoelectric detector comprises a conductive substrate layer, a ferroelectric material layer, a non-precious metal plasma layer and a top electrode layer arranged in sequence from bottom to top. 3+ Nd doping, a rare earth element with similar valence and ionic radius, can inhibit Bi 3+ vacancies and oxygen vacancies without changing the Bi 4 Ti 3 O 12 structure, and at the same time form a one-dimensional nanofiber structure, which can increase the surface area. Compared with the commonly used ferroelectric thin film samples, it is more conducive to promoting the formation of a single domain structure, thereby improving the ferroelectric polarization performance; the use of non-precious metal nanosheets to self-assemble Bi metal microspheres can not only produce surface plasmon resonance similar to precious metal Au, enhance the electric field strength in the near-field region and the ability to capture linear light, but also save preparation costs to avoid the problem of metal nanoparticle agglomeration.

The invention discloses a D-type photonic crystal fiber temperature sensor based on surface plasma resonance. The D-type photonic crystal fiber temperature sensor structurally comprises a fiber core and a perfect matching layer wrapping the fiber core, and circular air holes of different sizes are periodically arranged in the fiber core; the fiber core is provided with a polished plane, and the surface of the polished plane is coated with a gold film; a loss spectrum is obtained through calculation, and then the wavelength of the surface plasma formant and the sensitivity of the sensor are calculated. According to different temperatures of the temperature-sensitive liquid samples, wavelengths of formants of the transmission loss spectrum are also different. The temperature range of a temperature-sensitive liquid sample of the sensor is-10-60 DEG C, and the sensitivity of 9.8 nm / DEG C and the resolution of 0.01 DEG C. The sensitivity and the resolution of the sensor are superior to those of an existing sensor, and the sensor is simple in structure and easy to operate and has great application prospects in the fields of biomedicine, environmental monitoring and the like.

The present invention belongs to the field of structural health monitoring, and discloses an optical fiber corrosion sensor based on surface plasmon resonance technology, including a multimode optical fiber: a core, a cladding, and a coating layer; a single-mode optical fiber: a core, a cladding, a silver film, and an iron film. The present invention realizes corrosion monitoring of steel bars based on plasma resonance technology. After the iron film, which is similar to the main component of the steel bar, corrodes, it will change the refractive index of the medium surrounding the single-mode optical fiber. The plasma between the silver film and the iron film interface of the single-mode optical fiber is highly sensitive to the change in the refractive index of the surrounding medium, and the steel bar corrosion condition is indirectly monitored by monitoring the external refractive index of the single-mode optical fiber. The sensor has a simple structure, low cost, high sensitivity, and high measurement accuracy. It can effectively realize non-destructive, real-time, and accurate measurement of the steel bar corrosion condition in reinforced concrete structures. It has broad application prospects in the field of steel corrosion monitoring and is suitable for promotion.

This invention provides a frequency-domain shaping laser-plasma resonance sintering system using aerosol jetting. The localized strong electromagnetic field excited by LSPR can induce electron cloud rearrangement and chemical bond reconstruction at the interface of adjacent nanoparticles, forming an atomic-level interdiffusion transition layer. This invention precisely controls the laser wavelength through frequency-domain shaping technology to match the LSPR characteristic peaks of the nanoparticles, maximizing the local electromagnetic field enhancement effect. This allows for the completion of nanoparticle melting and necking formation at ultra-low laser power, overcoming the energy efficiency limitations of traditional post-processing techniques such as high-temperature furnace heating. Simultaneously, this process is completed within the femtosecond to picosecond timescale, avoiding component segregation caused by high-temperature thermal diffusion and significantly improving the bonding strength of the nanoparticle interface. Furthermore, it achieves nanoscale selective heating, completing particle melting and necking formation at ultra-low laser power, avoiding overall thermal damage.

The invention designs a 0D / 2D Cu-coated CuO / MoS2 heterojunction of a Cu-coated CuO core-shell structure enhanced TMDCs system, and the 0D / 2D Cu-coated CuO / MoS2 heterojunction can realize efficient photoelectric conversion and is applied to a high-sensitivity photoelectric detector. According to the invention, a core-shell plasma structure is obtained through a metal surface thermal oxidation technology, and a type-II 0D / 2D Cu-coated CuO / MoS2 heterojunction is constructed. On one hand, a built-in electric field is formed by a plasma shell layer material CuO and MoS2, so that separation of photo-induced electron-hole pairs can be promoted, hot electrons of LSPR (Local Surface Plasma Resonance) can be injected into a MoS2 layer in cooperation, the photoelectric conversion efficiency of a heterojunction system is improved, the contradiction between light absorption and carrier separation of a traditional heterojunction system is solved, and the photoelectric conversion efficiency of the heterojunction system is improved. And the response speed of the device is improved. And on the other hand, the shell layer material CuO can reduce interface damage caused by metal / semiconductor contact, so that the problem of high dark current accompanied by the plasma type photoelectric detector under high light response is solved. Compared with a traditional plasma type device only paying attention to light absorption, the plasma / TMDCs system heterojunction photoelectric detector designed by the invention effectively solves the problem of low response speed and shows excellent photoelectric conversion efficiency. The method is of great significance to development of low-dimensional hybrid heterojunction photoelectric detectors.