76 results about "Photon conversion" patented technology

The invention discloses a high-speed multi-photon detection system and method. The system comprises a detector and a signal processing circuit, wherein the detector is composed of a window plated with a photoelectric cathode, a micro-channel plate stack and an anode; a plurality of incident photons are converted into a plurality of photoelectrons by the photoelectric cathode, and the photoelectrons are converted into electron cloud by the micro-channel plate stack; the incident electron cloud is divided into multiple paths by three layers of staggered metal strip electrodes of the anode, and charge collection is carried out to obtain charge short pulses of each layer of electrode; the signal processing circuit converts the charge short pulses transmitted by the three layers of electrodes into digital pulse signals, obtains the centroid coordinates of the electron cloud from the digital pulse signals as the abscissa value, the ordinate value and the verification value of the incident photon position, combines the abscissa value, the ordinate value and the verification value based on the screening condition to obtain the target two-dimensional coordinates, and finally obtains the target two-dimensional coordinates. And transmitting to a terminal for imaging display. According to the invention, a plurality of synchronous photons can be detected, the overall counting rate of the detector is greatly improved, and the detection efficiency is improved.

A technique for using an onboard camera capable of day and night operation on an unmanned aerial vehicle (UAV) includes: traveling along a route of the UAV at night; and acquiring an aerial image with an onboard camera. The onboard camera includes: a sensor device for receiving photons and converting the photons into photoelectrons; a processor for processing the photoelectrons into an image file; a lens positioned adjacent to the sensor device for focusing the photons on the sensor device; and a filter positioned adjacent an outer surface of the lens. The filter can permit photons in the infrared light spectrum to pass to the lens, and attenuate at least a portion of the photons in the visible light spectrum prior to reaching the lens.

The invention belongs to the field of spectral measurement and imaging, and particularly discloses a single-photon detection device and a rapid spectrum and imaging system based on the single-photon detection device. According to the invention, the transmission-type optical fiber spectrometer separates polychromatic light of each wave band in space according to the wavelength, couples photons of different wavelengths into the optical fiber array for time delay, delays different wavelengths to different moments, and outputs the time to the single-photon detection device; the single-photon detection device converts photons of different wavelengths which arrive in time in sequence into electric signals, the number of photons at different moments is obtained after amplification and signal processing, and the photons are converted into spectrums. As the transmission-type spectrometer can provide higher diffraction efficiency, higher spectral resolution and higher signal intensity, and the single-photon detection device can provide a faster and more accurate photon discrimination and photon counting method, compared with the prior art, the spectrum can be measured more quickly on the whole, and higher spectral resolution and higher signal intensity are achieved.

The invention relates to the technical field of detection, and discloses an MCP image enhancement high-sensitivity detection system, which comprises a photoelectric cathode, which adopts a multi-quantum well structure and a surface plasma enhancement technology, is used for converting incident photons into primary electrons, and comprises a quantum well formed by gallium arsenide and gallium aluminum arsenide; a microchannel plate for amplifying primary electrons generated from the photocathode; the microchannel plate is coated with a superconducting thin film so as to reduce noise and improve electronic gain; various types of sensors include optical sensors, thermal imaging sensors, acoustic sensors, and chemical sensors. By adopting a multi-quantum well structure and a surface plasma enhanced photoelectric cathode, the spectral response and photoelectric conversion efficiency are remarkably improved, and the sensitivity and response speed of the system to non-specific wavelengths are enhanced. Meanwhile, the microchannel plate coated with the superconducting thin film effectively reduces the noise level, improves the signal definition and the image quality, and solves the high-gain limitation of a traditional system.

The application belongs to the field of spectral measurement and imaging, and specifically discloses a single-photon detection device and a rapid spectral and imaging system based on the same. According to the application, a transmission optical fiber spectrometer separates each waveband complex light according to wavelength in space, and couples the photons of different wavelengths into an optical fiber array for time delay, so that the different wavelengths are delayed to different time points and output to a single-photon detection device. The single-photon detection device converts the photons of different wavelengths arriving at the device in time sequence into electrical signals, and obtains the number of photons at different time points after amplification and signal processing, and converts the number of photons into a spectrum. Since the transmission spectrometer can provide higher diffraction efficiency, higher spectral resolution and signal strength, the single-photon detection device can provide a faster and more accurate photon discrimination and photon counting method, and compared with the prior art, the whole can measure the spectrum more quickly, and has higher spectral resolution and signal strength.

The application belongs to the technical field of photon imaging detection, and particularly relates to a photon counting imaging detection system based on a mixed anode. The system comprises a vacuum sealed tube detector composed of a window coated with a photocathode, a microchannel plate stack and a mixed anode, and a signal processing circuit. The photocathode is used for converting photons incident through the window into photoelectrons. The microchannel plate stack is used for converting the photoelectrons into electron clouds. The mixed anode comprises a strip anode and a delay line anode arranged orthogonally, and the mixed anode transmits the collected charge short pulses of each channel to the signal processing circuit. The signal processing circuit calculates the two-dimensional coordinates of the photons based on the collected charge short pulses of each channel, and then transmits the two-dimensional coordinates of the photons to a terminal for imaging display. The application provides a photon counting imaging detection system based on a cross strip-delay line mixed anode, and solves the problem that the existing position sensitive anode detector cannot simultaneously have high spatial resolution and high temporal resolution.

The present disclosure relates to a method for manufacturing a pixel that includes depositing an insulating layer on an exposed face of an interconnect structure of an integrated circuit, the interconnect structure having a conductive element flush with said exposed face; etching an opening passing through the insulating layer to the conductive element; depositing an electrode layer on and in contact with the conductive element and the insulating layer; performing chemical mechanical planarization up to the insulating layer, a portion of the electrode layer left in place in the opening forming an electrode; and depositing a film configured to convert photons into electron-hole pairs when a ray at an operating wavelength of the pixel reaches the pixel.

The quantum system for executing the CNOT gate comprises a linearly connected command circuit providing radiation, a target cat qubit device, and a control qubit device, the target cat qubit comprising a nonlinear component called ATS, which serves two purposes: namely, to appropriately process the two-photon conversion Hamiltonian for cat qubit stabilization and to appropriately process the CNOT Hamiltonian for executing the CNOT gate by the control qubit device. At any given time, the ATS plays either the role of cat qubit stabilization or the role of the CNOT gate.

The present disclosure relates to a method for manufacturing a pixel by: depositing an insulating layer on an exposed face of an interconnect structure of an integrated circuit, the interconnect structure having a conductive element flush with said exposed face; etching an opening passing through the insulating layer to the conductive element; depositing an electrode layer on and in contact with the conductive element and the insulating layer; defining an electrode by removing, by etching, part of the electrode layer resting on the insulating layer; and depositing a film configured to convert photons into electron-hole pairs when a ray at an operating wavelength of the pixel reaches the pixel.

A lighting device (ED) is fitted to a vehicle including a license plate (LP), and comprises: - a source (SP) generating photons having a first wavelength corresponding to a first color and intended to provide a brake light function at a first location, - a selection device (SD) designed to direct at least some of the generated photons to a second location, and - a converter (CC) installed at this second location and converting the photons arriving at the second location into photons having a second wavelength corresponding to a second color and intended to provide a license plate (LP) illumination function. Figure 2

An energy converter for converting photons into electrical energy is implemented as an integrated circuit in which the photons propagate in a coherent manner, and includes a configuration of waveguide

Embodiments of the present disclosure relate to reverse body biasing of a transistor using a photovoltaic source. A metal-oxide-semiconductor (MOS) transistor has a source terminal, a drain terminal, a gate terminal, and a body terminal. The source terminal is connected to receive a supply voltage, and the body terminal is connected to receive a reverse body bias voltage. A photovoltaic circuit has a first terminal connected to the source terminal of the MOS transistor and a second terminal connected to the body terminal of the MOS transistor. The photovoltaic circuit converts photons received from the environment to generate the reverse body bias voltage.

The invention discloses a superconducting single-photon readout imaging system based on capacitance feedback, and the system comprises a superconducting single-photon detector, a readout imaging system, a capacitance feedback module, a conversion module, an amplification processing module, a photon counting module, a readout imaging module, a capturing module, a carding module, and a sorting module. The beneficial effects of the invention are that by adding the capacitance feedback module, an output signal is fed back to the input end of the circuit through a capacitance element, and the output signal is controlled by changing the phase and the amplitude of the input signal, so that the output signal is reduced or eliminated, and the stability, the sensitivity and the reliability of the circuit are improved; by adding the conversion module, the amplification processing module, the photon counting module and the readout imaging module, a plurality of modules can be matched for use, an optical device is utilized to convert a single photon into an electronic signal, and then the electronic signal is matched with the photon counting module to generate a photoelectric reaction with a photosensitive element.

According to the acousto-optic modulator for realizing microwave photon conversion and the preparation method thereof provided by the invention, the runway type micro-ring is constructed on the piezoelectric film layer, the acoustic resonance frequency is accurately matched with the free spectral range of the runway type micro-ring structure, the cyclic generation of an optical modulation sideband is realized, the interaction between light waves and sound waves is greatly enhanced, and the optical modulation efficiency is improved. The acousto-optic coupling efficiency is remarkably improved, the power consumption of the device is greatly reduced, microwave photon conversion is achieved, the device is compact in overall structure and small in size, high-density on-chip integration is easy to achieve, further, periodic polarization is carried out on the interdigital electrodes, a cavity is formed under the piezoelectric film layer, and the photoelectric conversion efficiency of the device is improved. And the piezoelectric film layer is suspended, so that the working bandwidth of the device is further improved, and the requirement of high-speed information processing is met.

A thermophotovoltaic (TPV) generator includes one or more ring modules including a frame formed from a high thermal conductivity material. Each ring module may be attached to another ring module in an axially stacked manner with a gas sealing engagement between them. Each ring module includes, on either a radially inward or radially outward surface thereof, TPV cells having a TPV cell output power no lower than 40% of the product of open circuit voltage and short circuit current at the maximum expected incident photon flux with energies above the TPV cell bandgap,. Each TPV cell converts photons with energy above the TPV cell bandgap thereof from a radiator into electrical energy. Each TPV cell includes a heat mirror on its surface, facing the radiator, which reflects photons with an energy lower than the TPV cell band gap back to the radiator.

A smart energy recycling system and methods are disclosed. The smart energy recycling system comprises an energy device comprising emitting substrates configured to emit light of a pre-defined wavelength after receiving power from power grid. A photochromatic material disposed around emitting substrates. In an embodiment, photochromatic material is configured to convert photons emitted by emitting substrates into electrical energy. In an embodiment, the photochromatic materials corresponds to PV solar cells. An integrated energy storage device is electrically connected to an energy device and configured to store electrical energy produced by photochromatic materials. A regulation circuit of integrated energy storage device is configured to regulate and direct voltage and current generated by photochromatic materials and provide electrical energy to electrical grid or loads. In an embodiment, electrical energy being stored in an integrated energy storage device.

A quantum system for executing a CNOT gate includes a control circuit that provides radiation, a target cat qubit device and a control qubit device that are linearly coupled. The target cat quantum bit comprises a non-linear element, namely ATS, and has two purposes: the first purpose is to design two-photon conversion Hamiltonian for cat quantum bit stabilization, and the second purpose is to design CNOT Hamiltonian for executing a CNOT gate together with a quantum bit control device. At any time point, the ATS plays a role of cat quantum bit stabilization or plays a role of a CNOT gate.

A photovoltaic generation assembly is disclosed, comprising a plurality of vertically oriented solar tubes, each aligned with a corresponding Fresnel lens mounted on a movable Fresnel lens holder. The system includes a height adjustment assembly that controls the vertical position of the Fresnel lenses to optimize light focus based on solar movement. The adjustment mechanism may include a stepper motor driving a gear-based shaft assembly, or alternatively, a solenoid-based system that magnetically elevates or lowers the lens holder. Each solar tube incorporates a down-conversion assembly to shift high-energy photons, an up-conversion assembly to convert low-energy infrared photons into usable light, and a reflective base for photon recycling. An optional thermoelectric layer recovers heat energy. The arrangement increases photon absorption via internal reflections, improving solar conversion efficiency and enabling multiband energy harvesting from a compact, modular solar architecture.

A pixel includes a first electrode layer on an exposed surface of an interconnection structure and in contact with a conductive element of the interconnection structure. An insulating layer extends over the first electrode layer and includes opening crossing through the insulating layer to the first electrode layer. A second electrode layer is on top of and in contact with the first electrode layer and the insulating layer in the opening. A film configured to convert photons into electron-hole pairs is on the insulating layer, the second electrode layer and filling the opening. A third electrode layer covers the film.

The embodiment of the application discloses a kind of ultraviolet dot array detector and power equipment discharge detection system, including filter layer, active layer, charge separation layer, two-dimensional material modification layer and interdigital electrode.Filter layer is used to filter mixed light to obtain solar blind ultraviolet light.The material of active layer is β-Ga2O3, for converting solar blind ultraviolet photon into randomly distributed electron-hole pair.Charge separation layer is used to convert randomly distributed electron-hole pair into directional drift electron and hole.Two-dimensional material modification layer is used to transport the electron that drifts through electrode interface.Interdigital electrode is used to convert the electron that passes through electrode interface into electrical signal and then output.The embodiment of the application carries out hard filtering by filter layer to eliminate the interference of ambient light.Based on the physical characteristics of active layer material, most of the background light interference is eliminated from the nature of the material.Therefore, by different dimensions, the interference of ambient light on discharge detection is removed, and the detection effect is improved.

The present invention discloses a high-speed single-photon detection system and method. The system includes: a microchannel plate for converting incident high-speed single photons into electron clouds; an anode for dividing the electron clouds into multiple paths, generating short current pulses from the charge collected in each path and transmitting them to a signal processing path for the corresponding path; the signal processing path for converting the short current pulses into digital pulses, selecting a corresponding target shaping filter based on the time interval between adjacent digital pulses in the same path for adaptive shaping filtering, calculating the relative two-dimensional coordinate value of the high-speed single photon based on the shaped digital pulses, and transmitting the relative two-dimensional coordinate value to a terminal for imaging display. The signal processing path includes multiple shaping filters with different filtering parameters, each corresponding to a preset time interval range. By adaptively selecting the shaping filter based on the dynamic change of the pulse time interval, the present invention improves the actual count rate and spatial resolution during detection.

Techniques disclosed herein relate to photon sources with high spectral purity and high brightness. In one embodiment, a photon-pair source includes a pump waveguide, a first resonator coupled to the pump waveguide to couple pump photons from the pump waveguide into the first resonator, a second resonator coupled to the first resonator, and an output waveguide coupled to the second resonator. The second resonator is configured to convert the pump photons into photon pairs. The second resonator and the first resonator are configured to cause a coupling-induced resonance splitting in the second resonator or the first resonator. The second resonator and the output waveguide are configured to couple the photon pairs from the second resonator into the output waveguide. In some embodiments, the photo-pair source includes one or more tuners for tuning at least one of the first resonator or the second resonator.

Proposed are a gamma ray probe capable of being inserted into the human body and a gamma ray detection apparatus using the same. The gamma ray probe includes a collimator, a scintillator array disposed on a rear of the collimator and configured to emit light photons in response to radiation passing through the collimator, a light sensor module disposed on a rear of the scintillator array and configured to detect light photons emitted from the scintillator array and convert the light photons into an electrical signal, a light guide part disposed between the scintillator array and the light sensor module and configured to guide light photons from the scintillator array to the light sensor module, and a cylindrical probe casing accommodating the collimator, the scintillator array, the light sensor module, and the light guide part therein.

An X-ray detector for a computed tomography (CT) imaging system is provided. The X-ray detector includes a plurality of detector modules. Each detector module of the plurality of detector modules includes a scintillator layer configured to convert X-ray photons into lower energy light photons. Each detector module of the plurality of detector modules also includes a light imager layer configured to convert the light photons into electrons, wherein the light imager layer includes a light imager panel comprising an array of photodiodes. Each detector module of the plurality of detector modules further includes a readout device that converts the electrons into digitized pixel values, wherein each photodiode of the array of photodiodes is coupled to a respective dedicated readout channel of the readout device via a respective dedicated data line, and the readout device is configured to continuously directly readout the electrons from the array of photodiodes.

A single photon emission computed tomography (SPECT) imaging system includes a detector configured to receive photons emitted by a radiopharmaceutical in an examination region and convert the received photons to measured projection data and a collimator with septa spatially arranged with respect to each other and the detector to provide channels to pass photons that traverse the channels and absorb photons that impinge the septa. A first sub-set of the photons emitted by the radiopharmaceutical traverse the channels without impinging the septa and are directly received by the detector. A second sub-set of the photons emitted by the radiopharmaceutical traverse the septa and are received by the detector. The SPECT imaging system further includes a reconstructor configured to discard scatter photons and the second sub-set of photons traversing the septa, and iteratively reconstruct an image based on the first subset of photons that are directly received by the detector.

The present disclosure relates to a detector pixel for an energy-resolving photon counting detector, and to a photon counting detector comprising the same. The pixel comprises: a photodetector configured to convert an incident photon into a first signal indicative of an energy of the incident photon; a charge sensitive amplifier (CSA) configured to convert the first signal at an input of the CSA into a CSA output signal at an output of the CSA; and a dark current compensation unit (DCCU) for compensating a dark current of the photodetector. The DCCU comprises a signal following unit configured to provide an intermediate signal that is configured to follow a signal indicative of the CSA output signal, with a first maximum signal change rate in a first direction and a second maximum signal change rate, lower than the first maximum signal change rate, in a second direction opposite the first direction, wherein the second direction is a direction in which the signal indicative of the CSA output signal is configured to change when a photon is incident on the photodetector. The DCCU further comprises a signal generation unit configured to generate a dark current compensation signal based on the intermediate signal and to provide said dark current compensation signal to the CSA.

Disclosed are films comprising Ag, In, Ga, and S (AIGS) nanostructures and at least one ligand bound to the nanostructures. In some embodiments, the AIGS nanostructures have a photon conversion efficiency greater than 32% and an emission peak wavelength of 480-545 nm. In some embodiments, the nanostructures have an emission spectrum with a FWHM of 24-38 nm.

An apparatus for outputting a photon, the apparatus comprising an EM source arrangement for outputting phase modulated EM radiation; the phase modulated EM radiation comprising a set of one or more properties; the arrangement comprising at least one electromagnetic, EM, source for generating EM radiation at a plurality of different wavelengths; a modulator for receiving the EM radiation; phase modulating the received EM radiation; and outputting phase modulated EM radiation; an optical fibre for receiving the phase modulated EM radiation; converting, using a third order nonlinear susceptibility of the optical fibre, at least one photon of the phase modulated EM radiation into a first new photon; and a second new photon and outputting at least the first new photon, wherein the set of one or more properties comprises a wavelength of the phase modulated EM radiation and provides for the phase modulated EM radiation to propagate along the optical fibre with at least a positive value of a second order dispersion parameter; and a negative value of a fourth order dispersion parameter.

The present disclosure relates to a method for manufacturing a pixel that includes depositing an insulating layer on an exposed face of an interconnect structure of an integrated circuit, the interconnect structure having a conductive element flush with said exposed face; etching an opening passing through the insulating layer to the conductive element; depositing an electrode layer on and in contact with the conductive element and the insulating layer; performing chemical mechanical planarization up to the insulating layer, a portion of the electrode layer left in place in the opening forming an electrode; and depositing a film configured to convert photons into electron-hole pairs when a ray at an operating wavelength of the pixel reaches the pixel.