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40 results about "Metallic photonic crystal" patented technology
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Solution method preparation for metal photon crystal
InactiveCN101487976ALow costGood repeatabilityPhotomechanical apparatusOptical light guidesResistGrating
The solution method for preparing metal photonic crystal belongs to the technical field of nano photoelectron materials and devices thereof. The existing method for preparing metal photonic crystal is faced with the problems such as high cost, low efficiency and small area of preparation, etc. In the invention, sequentially, optical resist is rotatably coated on a substrate; the interference photolithography is adopted to prepare one-dimensional or two-dimensional nano optical grating structures; metal nano particle sol is rotatably coated and goes through low temperature heat treatment, thus obtaining the metal photonic crystal. The invention has the advantages of low cost, high efficiency and preparation of the metal photonic crystal in a large acreage and the like.
Owner:BEIJING UNIV OF TECH
High-sensitivity sensing film and surface plasmon resonance sensing detection system
InactiveCN105538812AHigh sensitivitySimple structureScattering properties measurementsElectrical equipmentGrapheneSurface plasmonic resonance
The invention discloses a high-sensitivity sensing film and a surface plasmon resonance sensing detection system. The sensing film comprises a one-dimensional metallic photonic crystal layer and a graphene layer, wherein the one-dimensional metallic photonic crystal layer covers the graphene layer, and the graphene layer covers a part of a sample layer. According to the invention, since the high-sensitivity sensing film including the one-dimensional metallic photonic crystal layer and the graphene layer is used to replace conventional precious metals as a sensing film used for generating surface plasmon polaritons, the sensitivity of the surface plasmon resonance sensing system is greatly improved; and the surface plasmon resonance sensing system has the advantages of simple structure, easiness in implementation, no need for usage of traditional precious metals and reduction in production cost.
Owner:SHENZHEN UNIV
Two-dimensional metallic photonic crystal-based light guide plate with polarization function
ActiveCN101699152AIncrease profitHighly integratedMechanical apparatusLight guides for lighting systemsGratingLight guide
The invention discloses a two-dimensional metallic photonic crystal-based light guide plate with a polarization function, which comprises a light guide plate substrate, a metallic photonic array, a metal layer and a one-dimensional grating, wherein the metallic photonic array is positioned on a light emitting surface of the light guide substrate; the metal layer and the one-dimensional grating are respectively positioned on the bottom surface of the light guide substrate opposite to the light emitting surface; and an light incidence surface and a side surface are positioned between the light emitting surface and the bottom surface of the light guide substrate respectively. Because a transmission type metal grating and a reflection type metal grating are directly manufactured on the light guide plate, the structure of a backlight system is simplified and the thickness of backlight is reduced; and a two-dimensional transmission type grating can regulate light-emitting performance in two directions, so the design flexibility is increased.
Owner:厦门市为纳光电科技有限公司
Method for preparing two-dimensional metallic photonic crystal structure in large area through femtosecond laser direct writing
InactiveCN105108342AAvoid complicated proceduresThe technical method is simpleLaser beam welding apparatusBirefringent crystalTime delays
Owner:NANKAI UNIV
Photonic crystal waveguide terahertz modulator for modulating terahertz waves at high speed
InactiveCN102393571ARealize the modulation frequencyIncrease modulation bandwidthNon-linear opticsVanadium dioxideIntensity modulation
The invention discloses a photonic crystal waveguide terahertz modulator for modulating terahertz waves at high speed. The surface of a silicon photonic crystal pillar array of wired defect waveguide is plated with a layer of vanadium dioxide film, the vanadium dioxide film without laser irradiation at room temperature is a medium phase and the member shows a band gap property of medium photonic crystal waveguide; when the surface of the photonic crystal pile is irradiated by laser, phase change occurs to the vanadium dioxide film and a member shows a bond gap property of metal photonic crystal waveguide. Because the conduction bands of the medium and the metal photonic crystal waveguide of a same structure are completely different, the terahertz strength modulation and frequency modulation of a light-controlled high speed broad bond can be realized. The terahertz modulator modulates the bond width largely, that is, more than 100GHz; the modulation mode is flexible and various and can realize multi-window strength modulation and frequency modulation; the modulation depth is more than 90%; the response time is short and the modulation speed is 100Gbps; and the structure and the modulation method are simple and convenient for minimization and integration, and can meet the requirement on a terahertz communication system.
Owner:NANKAI UNIV
Method for directly writing metal micro-nano structure by ultraviolet laser interferometry etching
InactiveCN101973512ALow costGood repeatabilityNanostructure manufactureLaser beam welding apparatusChemical synthesisMicro nano
The invention discloses a method for directly writing a metal micro-nano structure by ultraviolet laser interferometry etching, and belongs to the technical field of nano ophoelectronic materials and devices. A metal nanoparticle colloid is synthesized chemically and then is directly acted on the surface of a metal film by a heat treatment process and an ultraviolet laser interferometry etching technique and thus, the novel technique for preparing a one-dimensional or two-dimensional photnic crystal is realized. The method has the advantages of low cost, high efficiency, capacity of preparinglarge-area metal photonic crystals, and the like.
Owner:BEIJING UNIV OF TECH
Chromatic optical filter with polarization function based on one-dimensional metal photon crystals
InactiveCN101697021AWith polarized transmission characteristicsImprove optical efficiencyOptical filtersNon-linear opticsOptical polarizationOptical efficiency
The invention relates to a chromatic optical filter with a polarization function based on one-dimensional metal photon crystals in the technical field of a purely-flat liquid crystal display, which comprises a basal plate, a plurality of light absorption matrixes and one-dimensional submicron metal gratings, wherein the light absorption matrixes are regularly distributed at the surface of the basal plate, one one-dimensional submicron metal grating with a specific period is arranged in each light absorption matrix, the light absorption matrixes correspond to the sub-pixels of a panel of the purely-flat liquid crystal display, three light absorption matrixes form a unit which corresponds to one pixel of the panel of the purely-flat liquid crystal display, and three one-dimensional submicron metal gratings are respectively arranged on the lattice points of the three light absorption matrixes fixedly. The invention utilizes the diffraction of non-absorptive type optical gratings for optical filtering and can enhance the optical efficiency and lower the power consumption; meanwhile, the optical filter has polarization penetration property and can replace a front polarization piece in a liquid crystal panel, lowers the cost and enhances the integration degree.
Owner:SHANGHAI JIAO TONG UNIV
One-dimensional metallic photonic crystal plano-concave mirror for cylindrical symmetrical vectorial light beam focusing
The invention discloses a one-dimensional metallic photonic crystal plano-concave mirror for cylindrical symmetrical vectorial light beam focusing, and relates to the field of light field regulation in sub-wavelength photonics. The plano-concave mirror is composed of a one-dimensional metallic photonic crystal with metallic layers and dielectric layers arranged periodically and alternatively, and along the periodic photonic direction of the photonic crystal, one side is a plane while the other side is a hemispherical concave surface. By making full use of negative refraction properties and simultaneous orthogonal polarized light regulation capacity of the photonic crystal, the structure can effectively focus radial and spiral polarized light, and sizes of focused light spots reach sub-wavelength magnitude. In other words, by the structure, sub-wavelength focusing of cylindrical symmetrical vectorial light beams of any polarization component can be realized. By changes on constituent materials and structural parameters, focusing effect can be realized within broadband. The plano-concave mirror is simple in constituent material, easy for designing parameters and structurally easy to produce, and has good application prospects in the fields of near-field optics, quantum optics and the like.
Owner:NANJING UNIV OF POSTS & TELECOMM
Light guide plate with polarization function based on one-dimensional metal photon crystals
ActiveCN101696785AIncrease profitReduce lossMechanical apparatusLight guides for lighting systemsLiquid-crystal displayLight guide
The invention relates to a light guide plate with a polarization function based on one-dimensional metal photon crystals in the technical field of a liquid crystal display, which comprises a light output face, a bottom face, at least one light input face and a plurality of side faces, wherein the light output face and the bottom face are oppositely arranged, the light input face is connected with the light output face and the bottom face, an array comprising a plurality of lattice points is arranged on the light output face, and one one-dimensional transmission type metal photon crystal is arranged in each lattice point. The invention can enable emergent light to be uniform, enables non-polarized light emitted by a light source of a back light system to be transformed into linearly-polarized light for emergence by the polarization transformation function of the one-dimensional reflection type metal photon crystals and the polarization selecting penetration property of the one-dimensional transmission type metal photon crystals, can reduce energy loss caused by a front polarization piece, enhances the efficiency and even replaces the front polarization piece, thereby simplifying the structure of the light guide plate and lowering the cost.
Owner:厦门市为纳光电科技有限公司
Terahertz tunable filter of metal photonic crystal
InactiveCN102508375AImprove consistencyOvercoming the narrowing of the passband bandwidthStatic indicating devicesNon-linear opticsMetallic materialsBand width
The invention discloses a Terahertz tunable filter device of a metal photonic crystal and a control method thereof. A photonic crystal metal column array is encapsulated in a high-density polyethylene box which is filled with liquid crystals. The pointed angles of the liquid crystal molecules filled around the metal column are changed by controlling voltage, so that the energy band and band clearance position of the metal photonic crystal is changed to control the movement of a filter passband position and realize the function of tunable filtering. As a metal material is adopted to manufacture the photonic crystal, the shortcomings that the passband width is narrowed and the transmission rate is reduced in the tuning process of a medium photonic crystal are conquered; and the turning range of the photonic crystal is greatly extended. As the metal column serves as a special structure of an electrode, so that the distance between the anode and cathode is reduced; the consistency of liquid crystal distribution is improved; the working voltage is reduced and the response time is enhanced. The Terahertz tunable filter of the metal photonic crystal disclosed by the invention has the advantages of wide transmission band width and tunable range, stable passband width and transmission rate in the tuning process, less power consumption and high extinction ratio and is convenient for minimization and integration.
Owner:NANKAI UNIV
Waveguide coupling metal photonic crystal biosensor and detecting method thereof
ActiveCN101825629AHigh sensitivityFlexible testing methodsScattering properties measurementsPhotonicsSolution flow
The invention relates to a waveguide coupling metal photonic crystal biosensor and a detecting method thereof, which are used for the high-sensitivity sensation of biomolecule concentration and bioactive molecule idiosyncrasy. The waveguide coupling metal photonic crystal biosensor comprises a base, a waveguide layer and metal photonic crystals arranged on the waveguide layer. When the waveguide coupling metal photonic crystal biosensor is used for detecting, light transmitted by a light source irradiates the metal photonic crystals at an angle, and an optical detector is used for detecting an extinction spectrum of transmitted light passing through the waveguide layer and the base or detecting an extinction spectrum of transmitted light passing through the metal photonic crystals; after receptors are fixed on the metal photonic crystals, a sample solution flows through the surfaces of the metal photonic crystals, the detector is used for detecting the extinction spectrum of the transmitted light which passes through the waveguide layer and the base at the moment or detecting the extinction spectrum of the transmitted light which passes through the metal photonic crystals, and the two extinction spectrums are calculated by secondary extinction spectrums to quantificationally detect ligand concentration. The waveguide coupling metal photonic crystal biosensor has high sensitivity, low cost, simple preparation, simple use method, and the like.
Owner:BEIJING UNIV OF TECH
Dielectric-metal photonic crystal, preparation method thereof and tera-hertz pulse generator
The invention provides a dielectric-metal photonic crystal, a preparation method thereof and a tera-hertz pulse generator. The dielectric-metal photonic crystal has a multilayer composite structure represented in the following formula: [dielectric layer / metal layer]n / insulating substrate, wherein n is an integer in 1-10. The metal layer has a multilayer structure which is formed through alternatively combination of magnetic nanometer films and non-magnetic nanometer films. Compared with the prior art, the dielectric-metal photonic crystal according to the invention is advantages in that a specific structure is utilized, laser energy can be absorbed to a greater extent for exciting each metal layer to generate the tera-hertz pulse on one hand, and on the other hand, the tera-hertz pulses which are generated by the metal layers can be overlapped in a coherent manner, thereby greatly improving tera-hertz strength. The dielectric-metal photonic crystal applied to the tera-hertz pulse generator can maximally utilize femto second laser energy, thereby greatly improving tera-hertz strength and realizing wide frequency spectrum and adjustable polarization.
Owner:INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS
Splitter for high-polarization polarized light beam in visual light band
InactiveCN1383002AHas "scale invarianceScale invariantPolarising elementsNon-linear opticsMetallic materialsPolarimeter
The invention discloses the separator of polarization light beam with high degree of polarization in the visible light wave band by using the metal photon crystal structure. The medium sticks in two dimensions array structure are formed on the substrate. The said two dimensions array structure can be square lattice or hexagonal lattice. The said medium stick is made from metal material. SiO2 is inserted between medium sticks. The structure of polarimeter is different from the traditional polarimeter. Changing the ratio of R / a between the radius of the metal stick and the lattice constant can design the working wave band in advance and obtain high degree of polarization and transmission rate.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
Efficient GaN-based LED coupled to plasmon and manufacturing method thereof
InactiveCN104218127AAvoid the effects of effective excitationImprove consistencySemiconductor devicesMicro nanoChemical vapor deposition
The invention belongs to the technical field of microelectronics and optoelectronics and relates to an efficient GaN-based LED coupled to a plasmon and a manufacturing method thereof. The efficient GaN-based LED comprises a sapphire substrate, a GaN nucleating layer, a GaN undoped layer, an n-type GaN layer, InGaN / GaN multiple quantum wells, a p-type GaN ohmic contact layer, an Ag photonic crystal layer and a p-type GaN doped layer. Gaps of Ag photonic crystal are filled with p-type GaN. One electrode P and one electrode N are provided. The efficient GaN-based LED is manufactured by a MOCVD (metal organic chemical vapor deposition) technology and a micro-nano machining technology, and luminous efficiency of a device is enhanced by local coupling of SPP (surface plasmon polartions) leak mode and near field of the metal photonic crystal.
Owner:TIANJIN POLYTECHNIC UNIV
Metal plasmon coupling luminescence enhancement silicon substrate LED and manufacturing method thereof
InactiveCN103560192AImprove injection efficiencyAvoid the effects of effective excitationSemiconductor devicesLuminous intensityPhotonic crystal structure
The invention belongs to the technical field of micro-electronics and photoelectronics, and relates to a metal plasmon coupling luminescence enhancement silicon substrate LED which is manufactured based on the standard CMOS technique. The metal plasmon coupling luminescence enhancement silicon substrate LED comprises a P electrode, an N electrode and a P+N trap light-emitting junction which is integrated on a P type silicon substrate. The P+ and N+ are of a wedge structure with the tip angle ranging from 75 degrees to 90 degrees, a layer of SiO2 covers the P+N trap light-emitting junction at first, and then a metal Ag photonic crystal structure is manufactured on the surface of the SiO2. The light-emitting efficiency of a device is enhanced through the SPP leakage mode near field local coupling of a metal photonic crystal, the light-emitting strength of the silicon substrate CMOS device is improved, the light-emitting area of the device is centralized, the device has high light power density, and the photoelectricity integration of the device is facilitated.
Owner:TIANJIN POLYTECHNIC UNIV
Method for preparing metal photonic crystals through electrodeposition
ActiveCN108057880ASimple processLow costTransportation and packagingMetal-working apparatusCrystallographyOrganic solvent
The invention relates to a method for preparing metal photonic crystals through electrodeposition. A photonic crystal front template with good sequentiality is deposited on a FTO base through a gravity settling self-assembly method; the front template serves as a cathode, metal positive ions are reduced in an electrolyte, and gaps of the photonic crystal front template are filled with the metal positive ions; and the photonic crystal front template is removed through an organic solvent, and the metal photonic crystals of an inverse opal structure are prepared. By changing the particle sizes ofthe front template, the metal photonic crystals with the hole diameters being 100 nm-1 [mu]m are prepared. By adjusting the cathode-current density and the deposition time, thickness-controllable preparation of the metal photonic crystals is achieved.
Owner:SHANGHAI JIAO TONG UNIV
Two-dimensional metallic photonic crystal-based colored filter
The invention discloses a two-dimensional metallic photonic crystal-based colored filter, which belongs to the technical field of liquid crystal display. The two-dimensional metallic photonic crystal-based colored filter comprises a substrate and a plurality of two-dimensional transmission type metallic photonic units, wherein the two-dimensional transmission type metallic photonic units are positioned on the substrate; the two-dimensional transmission type metallic photonic units correspond to each pixel of a liquid crystal display; and each two-dimensional transmission type metallic photonic unit comprises an isolation matrix and three two-dimensional transmission type metallic photonic crystals having different cycles, wherein the two-dimensional metallic photonic crystals are positioned in the isolation matrix to filter the spectrums of red, green and blue correspondingly. The two-dimensional metallic photonic crystal-based colored filter can make light with specific wavelengths emit out at the same time, and make emergent light in linear polarization to improve light brightness; when the two-dimensional metallic photonic crystal-based colored filter is placed on a liquid crystal layer, the brightness can be increased by two times maximumly; when the two-dimensional metallic photonic crystal-based colored filter is placed on the light guide plate, the brightness can be increased by 5 times maximumly; and simultaneously, the integration level of a panel device can be improved, and the thickness and the cost of a panel can be reduced greatly.
Owner:厦门市为纳光电科技有限公司
Photonic crystal micro-nano structure direct-writing method based on metal nanoparticles
The invention discloses a photonic crystal micro-nano structure direct-writing method based on metal nanoparticles, which belongs to the technical field of nano optoelectronic materials and nano optoelectronic devices. By using a chemically compounded metal nanoparticle colloid, a new preparation technology of a one-dimensional or two-dimensional metal photonic crystal is realized by a UV pulse laser interference burning technology and a heat processing process. The method has the advantages of low cost, high efficiency, and the like, and can be used for preparing metal photonic crystals in a large area.
Owner:BEIJING UNIV OF TECH
Efficient light-emitting diode containing metal photonic crystal
InactiveCN103187503AImprove luminous efficiencyEnhanced Spontaneous Emission EfficiencySemiconductor devicesPhotonic bandgapPhotonics
Owner:ANHUI NORMAL UNIV
Preparation method of metal photonic crystal material
InactiveCN102644110AReasonable designEasy to operatePolycrystalline material growthSingle crystal growth detailsMicrosphereSilicon dioxide
The invention relates to a preparation method of a metal photonic crystal material, belonging to the preparation field of inorganic nano materials. The method comprises the steps of: preparing a silicon dioxide reverse template material by taking colloid microspheres as a template material; preparing silicon dioxide inverse opal structure by a co-assembly method; then carrying out reduction reaction by using steam of dimethylaminoborane, wherein an alcohol solution of chloroauric acid and chloroplatinic acid are taken as a gold source and a platinum source; and finally synthesizing the metal photonic crystal material. The technical scheme in the invention is novel and reasonable in design, wide in application scope, simple in operation, easy to control in reaction, good in repeatability, free from pollution and good in safety. The prepared metal photonic crystal material is even in order within hundreds of microns, and is good in optical property.
Owner:BEIJING UNIV OF CHEM TECH
Monocrystal gold nano balls and preparation method thereof
The invention relates to monodisperse monocrystal gold nano balls and a preparation method thereof. The monodisperse monocrystal gold nano balls have the characteristics of being smooth in surface, uniform in dimension, good in dispersity and the like. The dimension of the monodisperse monocrystal gold nano balls can be effectively regulated and controlled in the range from 50 nanometers to 200 nanometers. The preparation method of the monodisperse monocrystal gold nano balls includes the steps that (1) under the stirring condition, phthalic diglycol diacrylate, chloroauric acid and a small amount of silver nitrate and ferric trichloride aqueous solution are sequentially added to an ethylene glycol solution; (2) after a reaction precursor solution is placed at the temperature of 150-250 DEG C to react for 0.5-12 hours, centrifugation is conducted for 5-100 minutes under the condition that the rotating speed is 5000-14500 revolutions per minute; and (3) ultrasonic cleaning is conducted on red sediment products through a solvent, and the monodisperse monocrystal gold nano balls are obtained. The monodisperse monocrystal gold nano balls have significant application value in the aspects of metallic photonic crystals, plasmonics, surface enhanced Raman scattering, biological / chemical sensing, medical testing and the like.
Owner:UNIV OF JINAN
Solution method preparation for metal photon crystal
InactiveCN101487976BLow costGood repeatabilityPhotomechanical apparatusOptical light guidesResistGrating
The solution method for preparing metal photonic crystal belongs to the technical field of nano photoelectron materials and devices thereof. The existing method for preparing metal photonic crystal is faced with the problems such as high cost, low efficiency and small area of preparation, etc. In the invention, sequentially, optical resist is rotatably coated on a substrate; the interference photolithography is adopted to prepare one-dimensional or two-dimensional nano optical grating structures; metal nano particle sol is rotatably coated and goes through low temperature heat treatment, thusobtaining the metal photonic crystal. The invention has the advantages of low cost, high efficiency and preparation of the metal photonic crystal in a large acreage and the like.
Owner:BEIJING UNIV OF TECH
Waveguide coupling metal photonic crystal biosensor and detecting method thereof
ActiveCN101825629BHigh sensitivityFlexible testing methodsScattering properties measurementsBio moleculesReceptor
Owner:BEIJING UNIV OF TECH
One-dimensional metal photonic crystal cylindrical symmetric vector beam focusing plano-concave mirror
The invention discloses a one-dimensional metallic photonic crystal plano-concave mirror for cylindrical symmetrical vectorial light beam focusing, and relates to the field of light field regulation in sub-wavelength photonics. The plano-concave mirror is composed of a one-dimensional metallic photonic crystal with metallic layers and dielectric layers arranged periodically and alternatively, and along the periodic photonic direction of the photonic crystal, one side is a plane while the other side is a hemispherical concave surface. By making full use of negative refraction properties and simultaneous orthogonal polarized light regulation capacity of the photonic crystal, the structure can effectively focus radial and spiral polarized light, and sizes of focused light spots reach sub-wavelength magnitude. In other words, by the structure, sub-wavelength focusing of cylindrical symmetrical vectorial light beams of any polarization component can be realized. By changes on constituent materials and structural parameters, focusing effect can be realized within broadband. The plano-concave mirror is simple in constituent material, easy for designing parameters and structurally easy to produce, and has good application prospects in the fields of near-field optics, quantum optics and the like.
Owner:NANJING UNIV OF POSTS & TELECOMM
Fabrication method of femtosecond laser direct writing of large-area two-dimensional metal photonic crystal structure
InactiveCN105108342BSimple processLow costLaser beam welding apparatusMicro nanoBirefringent crystal
Owner:NANKAI UNIV
Method for preparing large-area nano-metal photonic crystal by hot-pressing printing
ActiveCN113985501ASimple processShort preparation cyclePhotomechanical apparatusOptical elementsHot stampingNano structuring
The invention discloses a method for preparing a large-area nano-metal photonic crystal by hot-pressing printing, and belongs to the technical field of metal photonic crystals. The method comprises the following steps: directly dripping a metal nanoparticle solution on an indium tin oxide (ITO) substrate, adopting a PDMS template with a nano structure, realizing transfer printing of the nano structure by utilizing a hot stamping technology, and finally performing annealing to obtain the metal photonic crystal with the same nano structure as the template. The method can be used for preparing the large-area nano metal photonic crystal, and has the advantages of simplicity, high efficiency and low cost.
Owner:BEIJING UNIV OF TECH
Photonic crystal waveguide terahertz modulator for modulating terahertz waves at high speed
InactiveCN102393571BIncrease modulation bandwidthFlexible modulationNon-linear opticsVanadium dioxideFrequency modulation
The invention discloses a photonic crystal waveguide terahertz modulator for modulating terahertz waves at high speed. The surface of a silicon photonic crystal pillar array of wired defect waveguide is plated with a layer of vanadium dioxide film, the vanadium dioxide film without laser irradiation at room temperature is a medium phase and the member shows a band gap property of medium photonic crystal waveguide; when the surface of the photonic crystal pile is irradiated by laser, phase change occurs to the vanadium dioxide film and a member shows a bond gap property of metal photonic crystal waveguide. Because the conduction bands of the medium and the metal photonic crystal waveguide of a same structure are completely different, the terahertz strength modulation and frequency modulation of a light-controlled high speed broad bond can be realized. The terahertz modulator modulates the bond width largely, that is, more than 100GHz; the modulation mode is flexible and various and can realize multi-window strength modulation and frequency modulation; the modulation depth is more than 90%; the response time is short and the modulation speed is 100Gbps; and the structure and the modulation method are simple and convenient for minimization and integration, and can meet the requirement on a terahertz communication system.
Owner:NANKAI UNIV
Single crystal gold nanosphere and preparation method thereof
ActiveCN105478790BGood dispersionUniform particle sizeNanotechnologySingle crystalEthylene glycol toxicity
Owner:UNIV OF JINAN
A high-sensitivity sensing film and surface plasmon resonance sensing detection system
InactiveCN105538812BHigh sensitivitySimple structureScattering properties measurementsElectrical equipmentGrapheneMaterials science
The invention discloses a high-sensitivity sensing film and a surface plasmon resonance sensing detection system. The sensing film comprises a one-dimensional metallic photonic crystal layer and a graphene layer, wherein the one-dimensional metallic photonic crystal layer covers the graphene layer, and the graphene layer covers a part of a sample layer. According to the invention, since the high-sensitivity sensing film including the one-dimensional metallic photonic crystal layer and the graphene layer is used to replace conventional precious metals as a sensing film used for generating surface plasmon polaritons, the sensitivity of the surface plasmon resonance sensing system is greatly improved; and the surface plasmon resonance sensing system has the advantages of simple structure, easiness in implementation, no need for usage of traditional precious metals and reduction in production cost.
Owner:SHENZHEN UNIV
Photonic crystal micro-nano structure direct-writing method based on metal nanoparticles
Owner:BEIJING UNIV OF TECH
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