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185 results about "Nano antenna" patented technology
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Dynamically distributable NANO RFID device and related method
InactiveUS20100001841A1Wireless architecture usageDistributed architecture usageNanometreComputer science
A nano RFID device or tag and method for using same are disclosed. The nano RFID device may be less than about 150 nanometers in size. The nano RFID device may be a passive, active or semi-passive nano RFID device. The nano RFID device may be distributed to a target such as a human or animal or products, for example. The nano RFID device may include an nano antenna that may comprise one or more carbon tubes. The nano RFID device may include a nano battery. The nano RFID device may include an environmentally reactive layer that reacts to its immediate environment to affix or adhere to a target. The nano RFID device may be constructed for direct or indirect distribution techniques such as by airborne techniques for inhalation, consumption distribution for ingestion, and contact distribution, for example.
Owner:CARDULLO MARIO W
Optical modulating device having gate structure
An optical modulation device includes a plasmonic nano-antenna layer, a metal layer that faces the plasmonic nano-antenna layer, and a permittivity variation layer and a dielectric material layer between the plasmonic nano-antenna layer and the metal layer. An active area formed in the permittivity variation layer according to an external signal may function as a gate that controls optical modulation performance.
Owner:SAMSUNG ELECTRONICS CO LTD +1
Bowtie Nanoantennas and Methods of Using the Same
A pillar-nanoantenna array structure is fabricated with a substrate to which pairs of pillars are coupled, where the pillars are characterized either by a thermal conductance less than 0.1 μW / deg or by transparency and a height exceeding thickness by at least a factor of two. Metallic caps atop a neighboring pair of pillars are separated by no more than 50 nm. An image-capture structure may be formed by modifying reflectance of a portion of the structure by heating of the portion by electromagnetic radiation. The array may be plastically deformed by raster scanning an electron beam across the array, exciting plasmon modes in the conducting particles thereby inducing a gradient force between neighboring conducting particles, and deforming neighboring pillars in such a manner as to vary the spacing separating neighboring conducting particles. A technique of plasmon-assisted etching provides for fabricating specified planar pattern of metal outside a cleanroom environment.
Owner:THE BOARD OF TRUSTEES OF THE UNIV OF ILLINOIS
Light modulators and optical apparatuses including the same
Provided are examples of light modulators and optical apparatuses that may include the light modulators. A light modulator may include a plasmonic nano-antenna and an element for changing plasmon resonance characteristics of the plasmonic nano-antenna. The plasmon resonance characteristics of the plasmonic nano-antenna may be changed due to a change in refractive index of the element, and thus light may be modulated.
Owner:SAMSUNG ELECTRONICS CO LTD
Infrared spectrum enhancement and detection method and infrared spectrum enhancement and detection device based on graphene nano antenna
ActiveCN103776790AEnhanced Absorption EnhancementReduce usageNanoopticsColor/spectral properties measurementsGratingBroadband
Owner:CHONGQING UNIV
Sensor system with plasmonic nano-antenna array
ActiveUS20120050732A1Increase heightRapid and sensitive chemical/biological agent detectionMaterial nanotechnologyRadiation pyrometrySystems designEngineering
In order to provide the high sensitivity SERS active substrates needed for rapid and sensitive chemical / biological agent detection, the present invention provides a Plasmonic Nano-antenna Array (PNA) substrate with large local electromagnetic field enhancements; a controllable and repeatable nano-fabrication process for creating the PNA surface; and a system design for a compact, portable device capable of using the PNA technology to acquire and analyze target molecular samples. Both 2D and 3D systems are provided.
Owner:LU WEIXING +1
Efficient broadband circular polarization conversion device and method based on meta-surface
ActiveCN107340559AImprove applicabilitySolve the problem that it is difficult to achieve high-efficiency broadband polarization regulationPolarising elementsMicro nanoOptoelectronics
The invention discloses an efficient broadband circular polarization conversion device and method based on a meta-surface, belonging to the technical field of micro nano optical application. The efficient broadband circular polarization conversion device based on a meta-surface, which is of a composite structure, includes a nano antenna layer, an interval dielectric layer and a metal substrate layer. The nano antenna layer is used for generating a specific phase for and modulating the amplitude of incident linearly polarized light. The interval dielectric layer is used for accumulating the phase change of optical wave. The metal substrate layer is used for reflecting the optical wave propagated to the surface of the metal substrate layer to improve the overall conversion efficiency of the device. The nano antenna layer, the interval dielectric layer and the metal substrate layer constitute an optical resonant cavity. The beams propagated in the optical resonant cavity can produce a Fabry-Perot multi-beam interference effect. The invention further discloses an efficient broadband circular polarization conversion method based on a meta-surface implemented using the circular polarization conversion device. Efficient and broadband modulation of outgoing circularly polarized light is realized.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Arbitrary polarization dynamic control device and method based on metamaterial-surface-phase-change-material
ActiveCN106681026AAchieve separationSolve the problem that it is difficult to realize dynamic polarization controlNon-linear opticsMicro nanoPhase difference
The invention relates to an arbitrary polarization dynamic control device and method based on metamaterial surface-phase change material, and belongs to the technical field of micro-nano optical applications. A metamaterial surface based on a V type nano-antenna array is used for reacting with a light field to generate a surface phase gradient, which causes that the abnormally transmitted polarized light generated under the condition of line polarized light normal incidence, deflects from the normal direction of the surface. At the same time, with the introduction of an interval modulation layer comprising periodically arrayed germanium-antimony-tellurium, under external excitation, phase differences of orthogonal polarization state emitted by different units are modulated, and overlap in space to achieve random polarization state synthesis of an outgoing light field. The method is an all-solid-state modulation method with no necessity of any mechanical modulation measures such as drawing or rotating. The separation of random polarized light and background light beams can be achieved to avoid cross fire. The method provides a flexible regulation and control measure for on-chip polarization applications of integrated optics.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Method for fabricating nanoantenna array, nanoantenna array chip and structure for lithography
ActiveUS20150146180A1Easy to implementAmplifying surface enhanced infrared absorption signalDiffusing elementsSemiconductor/solid-state device manufacturingResistLithographic artist
A method for fabricating a nanoantenna array may include forming a resist layer on a substrate, forming a focusing layer having a dielectric microstructure array on the resist layer, diffusing light one-dimensionally in a specific direction by using a linear diffuser, forming an anisotropic pattern on the resist layer by illuminating the light diffused by the linear diffuser on the focusing layer and the resist layer, depositing a material suitable for a plasmonic resonance onto the substrate and the resist layer on which the pattern is formed, and forming a nanoantenna array on the substrate by removing the resist layer and the material deposited on the resist layer. A light diffusing angle by the linear diffuser and a size of the dielectric microstructure are determined based on an aspect ratio of the pattern to be formed.
Owner:KOREA INST OF SCI & TECH
Metalens for light field imaging
Compound eyes of insects are great optical system for imaging and sensing by the nature creator, which is an unsurpassed challenge due to its precision and small size. Here, we use meta-lens consisting of GaN nano-antenna to open the fascinating doorway to full-color achromatic light field imaging and sensing. A 60×60 multi-channels meta-lens array is used for effectively capturing multi-dimensional optical information including image and depth. Based on this, the multi-dimensional light field imaging and sensing of a moving object is capable to be experimentally implemented. Our system presents a diffraction-limit resolution of 1.95 micrometer via observing the standard resolution test chart under white light illumination. This is the first mimic optical light field imaging and sensing system of insect compound eye, which has potential applications in micro robotic vision, non-men vehicle sensing, virtual and augmented reality, etc.
Owner:ACAD SINIC
Spatial light modulator including nano-antenna electrode and display apparatus including the spatial light modulator
ActiveUS20150331297A1Small in in lengthSmall in widthPolarising elementsNanoopticsSpatial light modulatorRefractive index
Owner:SAMSUNG ELECTRONICS CO LTD
Polarization multiplexing holographic imaging method based on transmission type all-medium metasurface
The invention belongs to the technical field of micro-nano optics, polarization optics and optical holographic, and discloses a polarization multiplexing holographic imaging method based on a transmission type all-medium metasurface. A response main wavelength <lambda> is determined; geometric parameters of a unit structure are determined; a GS phase recovery algorithm is adopted to obtain phase distribution of the unit structure responding to the main wavelength; the pixel point of each element is expanded into a 2*2 array by adopting a Dammann grating method, and the obtained each pixel unitcomprises information responding to horizontal polarized light and information responding to vertical polarized light; and a synthesized silicon nano-antenna array is irradiated by horizontal polarized light and vertical polarized light with the wavelength of <lambda>, and different holographic images are reconstructed. According to the method, phase modulation of 0-2 <pi> can be realized only bychanging the size of the short axis of the silicon nano-antenna, and an embossment phase modulation structure of any step number can be realized equivalently; and a simple process, high processing error tolerance and quite high stability and reliability are achieved.
Owner:UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
Optical modulating device having gate structure
An optical modulation device includes a plasmonic nano-antenna layer, a metal layer that faces the plasmonic nano-antenna layer, and a permittivity variation layer and a dielectric material layer between the plasmonic nano-antenna layer and the metal layer. An active area formed in the permittivity variation layer according to an external signal may function as a gate that controls optical modulation performance.
Owner:SAMSUNG ELECTRONICS CO LTD +1
Coupled photon-plasmon micro cavity with focused energy, preparation method and applications thereof
ActiveCN105911621AHigh strengthIncrease the magnetic field strengthAntennasOptical elementsElectrical field strengthRefractive index
The invention discloses a coupled photon-plasmon micro cavity with focused energy, a preparation method and applications thereof. A coupled layer is connected with a Bragg nano micro cavity and a metal surface plasmon lens to form a coupled photon-plasmon micro cavity, under effects of the coupled layer, a waveguide mode and a surface Plasmon mode interact, a coupled photon-plasmon mode is formed, and thus, energy is focused in the center of the Bragg nano micro cavity; through a bow tie antenna and a magnetic oscillator, energy limited in the Bragg nano micro cavity can be effectively coupled in the bow tie antenna or the magnetic oscillator, and the electric field strength in the bow tie nano antenna and the magnetic field strength in the magnetic oscillator are greatly improved; and the coupled photon-plasmon micro cavity can be applied to a single molecule Raman spectrum detection device, a molecular surface enhanced infrared absorption spectrum detecting device, a nano point light source in lithography micromachining, and a refractive index sensor or a biosensor.
Owner:PEKING UNIV
Optical modulating device, beam steering device, and system employing the same
An optical modulating device, a beam steering device, and a system employing the same are provided. The optical modulating device includes an active layer, a driver configured to electrically control a refraction index of the active layer, and a nano-antenna disposed on the active layer, and having a dual nano-antenna structure including a first nano-antenna and a second nano-antenna, the first nano-antenna having a length different from a length of the second nano-antenna, and the first nano-antenna being spaced apart from the second nano-antenna. The driver includes a first driver electrically connected to the first nano-antenna, and a second driver electrically connected to the second nano-antenna.
Owner:SAMSUNG ELECTRONICS CO LTD
Ultra-thin, planar, plasmonic metadevices
ActiveUS20150309218A1Limited focal lengthControl lengthNanoopticsNon-linear opticsOptical polarizationPhysics
An ultra-thin planar device is used for arbitrary waveform formation on a micrometer scale, regardless of the incident light's polarization. Patterned perforations are made in a 30 nm-thick metal film, creating discrete phase shifts and forming a desired wavefront of cross-polarized, scattered light. The signal-to-noise ratio of these devices is at least one order of magnitude higher than current metallic nano-antenna designs. The focal length of a lens built on such principle can also be adjusted by changing the wavelength of the incident light. All proposed embodiments can be embedded, for example, on a chip or at the end of an optical fiber.
Owner:PURDUE RES FOUND INC
Dynamically triggerable NANO RFID device and related method
A nano RFID device or tag and method for using same are disclosed. The nano RFID device may be less than about 150 nanometers in size. The nano RFID device may be a passive, active or semi-passive nano RFID device. The nano RFID device may be distributed to a target such as a human or animal or products, for example. The nano RFID device may include a nano antenna that may comprise one or more carbon tubes. The nano RFID device may include a nano battery. The nano RFID device may include an environmentally reactive layer that reacts to its immediate environment to affix or adhere to a target. The nano RFID device may be constructed for direct or indirect distribution techniques such as by airborne techniques for inhalation, consumption distribution for ingestion, or contact distribution, for example. The nano RFID device may also be constructed to deliver, on command or other certain conditions, an effect such as a virus, compound, toxin or the like, on a target such as a terrorist, for example.
Owner:CARDULLO MARIO W
Optical device structure unit of visible light wave band transform and optical device
InactiveCN106054287AImplement exception reflectionImprove usabilityPolarising elementsLight beamWavelength
The present invention provides an optical device structure unit of visible light wave band transform and an optical device. The optical device structure unit of visible light wave band transform comprises an antenna formed by a TiO2 material, a silver mirror, and a silicon dioxide substrate, wherein an antenna structure is at a top layer, the silver mirror is in the middle, and a silicon dioxide substrate material is at the bottom, the width size a of the antenna is between 160nm and 180nm, the length size b of the antenna is between the 240nm and 370nm, the lengths and widths of the silver mirror and the silicon dioxide substrate are the same and are recorded as P, a period P=430+ / -10nm, the thickness t1 of the antenna structure is 240+ / -5nm, and the solver layer thickness t2 of the silver mirror is 300+ / -20nm. According to the optical device, a TiO2 nano antenna is used as the basic structure unit, a metasurface sub unit perfectly realizes beam abnormal reflection at the wavelength of 632nm, and the formed optical device has a high abnormal reflection conversion efficiency.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
Super apochromatic supersurface composite microlens
ActiveCN108873121AOptimizing Orthogonal Polarization State Conversion EfficiencyMeet needsLensSpectral responseMiniaturization
Owner:UNIV OF SHANGHAI FOR SCI & TECH
Medium-infrared filter based on medium super surface
InactiveCN108700687AThe working wavelength can be adjusted arbitrarilyEfficientOptical filtersMid infraredLength wave
The invention provides a medium-infrared filter based on a medium super-surface. The product comprises an array layer and a substrate layer, the array layer is a dielectric resonator array layer, andthe array layer is an array composed of a plurality of unit nano-antennas, and the array is periodically arranged in a two-dimensional lattice and has symmetry for the x-axis and the y-axis, the unitnano-antenna is a cylindrical dielectric resonator, and the thickness h of the array layer is 0.4 [mu]m to 0.5 [mu]m; the diameter of the unit nano-antenna d is smaller than the periodic lattice constant p of the base layer, and the diameter d is smaller than the wavelength corresponding to the unit nano-antenna; the base layer is a mid-infrared high-permeability medium base layer. The device works in the mid-infrared band, and the overall thickness of the system is less than the working wavelength. The device all employs medium-infrared low-loss materials, which are highly efficient. For normal incident electromagnetic waves, the reflectivity exceeds 95%; by adjusting the geometric parameters of the structure, any regulation of the operating wavelength of the device can be achieved.
Owner:DONGGUAN UNIV OF TECH
Ultra Massive MIMO Communication in the Terahertz Band
ActiveUS20160323041A1Semiconductor/solid-state device detailsSolid-state devicesCommunications systemMimo communication
A communication system includes a two-dimensional array of a plurality of plasmonic nano-antennas. Each plasmonic nano-antenna supports a surface plasmon polariton wave. A plurality of communications elements each excite a corresponding one of the plasmonic nano-antennas, thereby causing a surface plasmon polariton wave that corresponds to a signal to form on each of the plasmonic nano-antennas.
Owner:GEORGIA TECH RES CORP +1
Light modulators and optical apparatuses including the same
Provided are examples of light modulators and optical apparatuses that may include the light modulators. A light modulator may include a plasmonic nano-antenna and an element for changing plasmon resonance characteristics of the plasmonic nano-antenna. The plasmon resonance characteristics of the plasmonic nano-antenna may be changed due to a change in refractive index of the element, and thus light may be modulated.
Owner:SAMSUNG ELECTRONICS CO LTD
Light modulators and optical apparatuses including the same
Owner:SAMSUNG ELECTRONICS CO LTD
Nano-antenna apparatus and method
InactiveUS7068225B2Simultaneous aerial operationsAntenna supports/mountingsOblate spheroidBpsk modulation
A nano-antenna apparatus (or equivalently a nano-antenna device) comprises a first conducting surface, a second conducting surface, a gap region between a first conducting surface and a second conducting surface and at least one discharge switch at least one discharge switch cooperates with first conducting surface, a second conducting surface to form a substantially continuous closed surface enclosing a volume. This volume may be substantially similar to a spheroid, a prolate spheroid, an oblate spheroid, a Cartesian rectangular solid or other shape. This volume may enclose at least one electric device. A dimension of the volume and a dielectric constant characterizing a dielectric layer may be chosen so as to yield a desired frequency response. Further, this volume may partition outside energy from inside energy, causing the former energy to radiate away.This invention further teaches a method for transmitting UWB impulse. This method comprises the steps of charging a first conducting surface with respect to a second conducting surface, and discharging a first conducting surface with respect to a second conducting surface such that the discharging forms a substantially continuous closed conducting shell from a first conducting surface and a second conducting surface. In alternate embodiments the discharging or charging may be adiabatic. Discharging may be positioned in time in accordance with a pulse position modulation scheme. Charging may be polarized in accordance to a flip or BPSK modulation scheme. Discharging may be effected by diodes, transistors, or MEMS devices.
Owner:NEXT RF
Manufacturing method of high-efficiency nano antenna solar battery
InactiveCN102709399APlay a role in rectificationSimple processFinal product manufactureSemiconductor devicesCarbon nanotubeSubstrate modification
The invention relates to a manufacturing method of a high-efficiency nano antenna solar battery. The manufacturing method comprises the following steps of: preparing turbid liquid from an ethanol or acetone organic solvent and nano silicon powder according to a massic volume ratio of nano silicon (g) to the organic solvent (ml) of 1:200, and spin-coating the turbid liquid onto a metal substrate for carrying out substrate modification by a spin coating method; and growing a silicon-graphite-carbon nano tube composite structure on the substrate in one step under the conditions of temperature of 800-1000 DEG C and standard pressure intensity of 40-100Pa and forming a solar battery device sheet; generating a silicon rubber or silicon carbide or alumina passivation layer among carbon nano tubes by adopting a spin coating process or sputtering or evaporating; and depositing a transparent conductive film on the upper layer of the device sheet by adopting methods, such as an electron beam evaporation method and a magnetron sputtering method, and finally obtaining the high-efficiency nano antenna solar battery by taking the metal substrate and the transparent conductive film as electrodes. The manufacturing method disclosed by the invention can be used for directly generating a nano solar battery main structure by adopting a one-step method, is simple and highly-efficient, saves raw materials and cost and is suitable for large-scale production.
Owner:UNIV OF SHANGHAI FOR SCI & TECH
Graphene-based Plasmonic Nano-antenna for Terahertz Band Communication
InactiveUS20160218434A1Specific nanostructure formationNanoinformaticsGraphene nanoribbonsDielectric layer
An antenna system includes an elongated conductive plane and an elongated dielectric layer that is disposed on the conductive plane. An elongated graphene nanoribbon is disposed along an axis and is coupled to the dielectric layer at a graphene / dielectric interface. A feeding mechanism is coupled to the conductive plane. The feeding mechanism is configured to accept a signal that excites surface plasmon polariton waves at the graphene / dielectric interface. In a method of making a surface plasmon polariton wave antenna, an elongated conductive plane is formed. An elongated dielectric layer is applied on a surface of the conductive plane. An elongated graphene nanoribbon is applied to the dielectric layer. A signal source is coupled to the elongated conductive plane.
Owner:GEORGIA TECH RES CORP
Thin film super absorber with low cost and large area and preparation method of film
InactiveCN103568441ASimple methodLow costLayered productsSuperimposed coating processPhysical chemistryThin membrane
The invention belongs to the technical field of micro-nano photons, and particularly relates to a thin film super absorber with the low cost and a large area and a preparation method of the film. The method is based on widely used film coating and thermal annealing methods, a metal particle array or a micro-nano net structure with a controllable integral shape is prepared as a coupling micro-nano antenna of a three-layer or five-layer thin-film type artificial specific material super absorber, and the thin film super absorber is a super absorbing thin film capable of realizing operation from the visible light band to the infrared band. According to the method, an expensive and complicated electronic etching technology is eliminated, and the preparation with the large area and the low cost can be carried out. The technology is simple in operation, and can be compatible with various substrates, and has a wide commercial prospect in the fields of solar energy collection, heat energy circulation, photochemical catalyst reinforcement, thin-film photoelectronic devices.
Owner:FUDAN UNIV
Thin film photovoltaic cell structure, nanoantenna, and method for manufacturing
InactiveUS20140158198A1Improve light capture efficiencyCost efficient to manufactureSemiconductor/solid-state device manufacturingNanoopticsResonant cavityElectricity
A thin film photovoltaic cell structure (1) comprises a substrate (2); a first dielectric layer (3) on the substrate (2); an active layer (4) on the first dielectric layer (3); and a plasmonic light concentrator arrangement (5) on the active layer (4) for coupling incident light at a first wavelength band into the active layer (4). According to the present invention, the thin film photovoltaic cell structure (1) further comprises a second dielectric layer (6) formed of a dielectric material which is transparent at the first wavelength band and at a second wavelength band on the plasmonic light concentrator arrangement (5); the first dielectric layer (3), the active layer (4), the plasmonic light concentrator arrangement (5), and the second dielectric layer (6) being configured to form a resonant cavity for coupling incident light at the second wavelength band into a standing wave confined in the resonant cavity.
Owner:AALTO UNIVERSITY FOUDATION SR
Graphene-based plasmonic nano-antenna for terahertz band communication
An antenna system includes an elongated conductive plane and an elongated dielectric layer that is disposed on the conductive plane. An elongated graphene nanoribbon is disposed along an axis and is coupled to the dielectric layer at a graphene / dielectric interface. A feeding mechanism is coupled to the conductive plane. The feeding mechanism is configured to accept a signal that excites surface plasmon polariton waves at the graphene / dielectric interface. In a method of making a surface plasmon polariton wave antenna, an elongated conductive plane is formed. An elongated dielectric layer is applied on a surface of the conductive plane. An elongated graphene nanoribbon is applied to the dielectric layer. A signal source is coupled to the elongated conductive plane.
Owner:GEORGIA TECH RES CORP
Structure having nanoantenna and method for manufacturing same
The present invention relates to a structure having a nanoantenna, a method for manufacturing same, a drug delivery body having the same, a thermotherapy complex, a drug therapy device, and a thermotherapy device. The structure of the present invention has a nanoantenna pattern formed on the outer surface of a porous micro-container, thereby enabling wireless control from the outside, and when the structure is used as a drug delivery system and a thermotherapy complex, drug therapy and thermotherapy can be carried out at a desired application region inside a living body at a desired time. Also, the structure of the present invention enables transmission and reception of a wireless signal with an external controller through the nanoantenna, thereby enabling the detection of a signal inside the living body and the transmission of the signal to the external controller, and the discharge of a drug or nanowires according to a response signal transmitted from the external controller.
Owner:KOREA UNIV RES & BUSINESS FOUND
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