15 results about "Laser cooling" patented technology

A core-shell nanoparticle having a cleaned nitrogen-vacancy nanodiamond (NVND) core surrounded by an upconversion nanoparticle (UCNP) shell, wherein the cleaned nitrogen-vacancy nanodiamond (NVND) core comprises a cleaned nitrogen-vacancy nanodiamond, wherein the UCNP shell comprises an upconversion nanoparticle (UCNP), wherein the UCNP comprises lithium yttrium fluoride (LiYF4) doped with a lanthanide ion combination, wherein the lanthanide ion combination comprises a M1 ion and a M2 ion, wherein M1 is ytterbium (Yb) or neodymium (Nd) and M2 is erbium (Er), thulium (Tm) or holmium (Ho), and wherein the core-shell nanoparticle emits a red-emission upon a near-infrared (NIR) excitation is disclosed. Integration of cleaned NVNDs with UNCPs for enhancing optical manipulation and enabling efficient energy transfer for applications in biological imaging, quantum sensing and laser cooling is disclosed.

In an example, the present invention provides a modular quantum computer system. The system has at least one quantum computer cell system. In an example, the system has a plurality of qubits comprising a laser coolable atom, ion, nitrogen vacancy center, silicon color center or qubit systems with an optical control capability, such that a number of the qubits range from one to 100,000, among others. In an example, the quantum computer cell system has an optical link. The optical link has a photon collection system or a pair of optical mirrors characterized by a mirror reflectivity >90% and configured to form a cavity, the cavity having a length, e.g., ranging from 1 micrometer to 1 centimeter or longer.

The utility model discloses a circulating water control cabinet and a laser cooling system, and relates to the technical field of laser heat dissipation, the circulating water control cabinet is used for heat dissipation of a laser, the circulating water control cabinet comprises a water supply device, a three-way structural member, a backwater decoupling strand and a drainage structure, the three-way structural member comprises a first connecting end and two second connecting ends, the water return structure comprises a first three-way valve, the first three-way valve comprises a discharge end and two water return connecting ends, and the two water return connecting ends are connected with the water supply device and the laser respectively; the drain pipe is arranged at the discharge end of the first three-way valve; in the scheme of the utility model, compared with the current situation that a water pipe is dismounted in a workshop, the circulating water control cabinet can completely drain residual accumulated water in the laser before the water pipe is dismounted, thereby preventing the accumulated water from flowing into the ground and avoiding potential safety hazards.

The application discloses a kind of active coherent optical synthetic aperture super-resolution imaging space target monitoring systems, including active coherent light generation module, optical imaging module, image super-resolution reconstruction module, power module, motion control module and heat dissipation module.Active coherent light generation module is constituted by laser and optical phased array, optical imaging module is constituted by front end optics and surface array detector, image super-resolution reconstruction module is constituted by GPU and super-resolution reconstruction software.Laser provides light source for optical phased array, optical phased array irradiates light source to target, and front end optics receives target reflected light, and forms low-resolution image on surface array detector.Image super-resolution reconstruction module carries out pre-processing and super-resolution reconstruction to low-resolution image.Power module provides power supply for other modules.Motion control module is used to control system to realize aiming tracking, and heat dissipation module is used for laser cooling.The application can realize 4-8 times equivalent aperture super-resolution imaging.

The invention belongs to the technical field of calcium carbide furnaces, and discloses a high-energy hole opening method for a calcium carbide furnace device, which comprises the steps of self-checking, parameter setting, positioning and adjusting, high-energy hole opening and ending. After self-checking and verifying the authority, starting multiple systems, completing function detection, and checking hidden dangers of equipment; setting parameters according to furnace eye and working condition information, and presetting laser, cooling and positioning parameters; after positioning adjustment and coarse positioning, the coordinates of the furnace eye are analyzed, and precise alignment and posture locking of the laser assembly are completed; a high-energy eye-opening laser and cooling system scans according to a composite track and is dynamically adjusted until eye opening succeeds; and stopping laser at the ending step, delaying cooling temperature reduction, resetting equipment and filing operation data. According to the high-energy hole opening method for the calcium carbide furnace device, through automation, laser and closed-loop control technologies, traditional manual operation and carbon rod operation are thoroughly replaced, safety risks and material consumption are fundamentally eradicated, remote, accurate and efficient hole opening is achieved, and the operation success rate and continuity are greatly improved.

This invention relates to the field of laser cooling technology, specifically to a multi-layered cross-shrinking channel phase change cold plate and its control method. The multi-layered cross-shrinking channel phase change cold plate includes a first thermally conductive layer, a second thermally conductive layer, a first flow channel, a second flow channel, and a thermally conductive separator. The first and second thermally conductive layers are spaced apart along a first arrangement direction. The first flow channel extends along the surface of the first thermally conductive layer, and the cross-sectional area of ​​the first flow channel gradually decreases along the first flow direction. The second flow channel extends along the surface of the second thermally conductive layer, and the cross-sectional area of ​​the second flow channel gradually decreases along a second flow direction. The first and second flow directions are opposite. This invention can solve the problems of efficient double-sided heat dissipation, flow stability, and temperature uniformity in the thermal management of high-power lasers.

The application discloses an ultranarrow-bandwidth atomic filter based on cold atoms and an implementation method thereof. The application combines cold atoms with an atomic filter, slows down atoms through laser cooling technology, reduces the influence of Doppler effect, and further realizes an ultranarrow-bandwidth atomic filter with a transmission bandwidth close to the natural line width of atomic transition. The implementation of the application can solve the problem that the influence of thermal atomic Doppler broadening causes the transmission bandwidth to be unable to be further narrowed in the existing transmission bandwidth narrowing technology of a Faraday atomic filter, and can expand the research of a traditional thermal atomic Faraday filter to the field of cold atoms in modern science, provide new possibilities for substantial and significant progress and construction of a filter based on cold atoms, and bring extremely potential development to many fields. The application overcomes the limitation of thermal atomic Doppler broadening on the further narrowing of the transmission bandwidth of a Faraday atomic filter, and brings a significant bandwidth narrowing effect.

The utility model provides a kind of laser cooling device, it is related to laser cooling technical field, comprising: laser main body;The laser main body is sheathed with cooling jacket box;One side of the cooling jacket box is vertically accompanied with cooling liquid storage tank, and cooling liquid is stored in the cooling liquid storage tank;Circulating pump is fixedly installed on the upper end of the one side of the cooling liquid storage tank, and circulating pump is used to circulate the cooling liquid in cooling liquid storage tank and cooling jacket box;The lower end of the cooling jacket box is vertically provided with mounting bracket on one side.The cooling jacket box of high thermal conductivity material is closely sheathed laser main body, and combined with its internal spiral arrangement of circulating cooling pipe, greatly increase the heat exchange area and the residence time of cooling liquid in jacket box, ensure that the heat generated by laser main body can be efficiently, rapidly conducted to the cooling liquid flowing through the inner cavity of circulating cooling pipe, and the basic heat dissipation efficiency is high.

The invention discloses a laser cooling device with a partitioned design, and belongs to the technical field of laser equipment cooling. According to the device, the interior of a case is sequentially divided into a front cabin, a middle cabin and a rear cabin in the length direction, and an upper-lower double-layer structure is adopted. The front cabin is provided with a condenser, a fan and an external waterway interface; a compressor, a plate heat exchanger and functional water pumps are intensively mounted in the middle cabin; and the lower layer of the rear cabin is provided with a working water tank. Through the'front-middle-rear 'partition layout, the physical isolation of the vibration source, the heat source and the control unit is realized, and the operation stability is improved. Refrigeration circulation and cooling medium circulation are matched with each other, and transient high-power heating of the laser is coped with through the cold storage water tank. Each core component is installed in an independent modularization mode, on-site rapid maintenance and replacement are supported, and maintainability and reliability of equipment are remarkably improved.

This invention discloses a Zeeman deceleration optimization method, system, and apparatus for multi-component atoms. The method includes: generating a Zeeman decelerator magnetic field based on a magnetic field coil; setting a first cooling light and a second cooling light, and adjusting the intensity and detuning of the first and second cooling lights, as well as the Zeeman decelerator magnetic field, to decelerate a high-temperature atomic beam, obtaining the parameters of the first and second cooling lights and the Zeeman decelerator magnetic field at the point of highest deceleration efficiency. The system includes a magnetic field generation module, a first cooling light deceleration module, a first deceleration efficiency adjustment module, a second cooling light deceleration module, and a second deceleration efficiency adjustment module. The apparatus includes an atomic furnace, a first differential tube, a second differential tube, a Zeeman decelerator, a magneto-optical trap, and the first and second cooling lights. By using this invention, the deceleration efficiency of multi-component atom Zeeman deceleration can be improved. This invention can be widely applied in the field of atomic laser cooling and trapping technology.

The invention provides a fiber mirror-based small integrating sphere cold atomic clock, which comprises a diffuse reflection laser cooling system and an optical system, and is characterized in that the optical system comprises a DFB laser (1), an ECDL external cavity laser (2), a polarization beam splitter (3), an acoustic optical modulator (4), a 1 / 4 wave plate (5), a diaphragm (6), a reflector (7) and an optical fiber coupler (8); the diffuse reflection laser cooling system comprises a first optical fiber (9), a second optical fiber (10), a fiber mirror (11), a polytetrafluoroethylene cavity (12) and a photoelectric detector (13). The small integrating sphere cold atomic clock system based on the fiber mirror not only can provide a diffuse reflection laser cooling system for miniaturization, but also lays a solid foundation for further miniaturization of the whole integrating sphere cold atomic clock system.

A quantum-computing method includes executing a data quantum circuit with data qubits, all of which are of the same first type of quantum system having a first plurality of transitions. The quantum-computing method also includes executing a spectator quantum circuit with spectator qubits, all of which are of the same second type of quantum system having a second plurality of transitions. During execution of the spectator and data quantum circuits, the spectator qubits and data qubits are simultaneously driven with a coherent radiation field while the data qubits are in coherent superposition states. The radiation field is (i) far detuned from all of the first plurality of transitions and (ii) resonant with one of the second plurality of transitions. The first and second types of quantum system may be two different atomic species that can each be laser cooled and trapped, such as rubidium and cesium.

A laser cooling liquid pretreatment device comprises a pretreatment tank, a heating base, a filling assembly, an exhaust assembly, a pressure detection assembly, a temperature detection assembly, a cooling assembly, a vacuum pump, a gear pump, a flow meter and a control system, the pretreatment tank is fixedly installed on the heating base, and an openable upper sealing cover is arranged on the upper portion of the pretreatment tank; the filling assembly is communicated with the pretreatment tank through a ball valve switch, the exhaust assembly comprises an exhaust pipeline and a backflow prevention air stop valve, the exhaust pipeline is communicated with the interior of the tank body, and the temperature detection assembly and the pressure detection assembly are installed on the pretreatment tank and the exhaust pipeline correspondingly; the control system dynamically adjusts the power of the heating base, the on-off state of the anti-backflow check valve and the working state of the vacuum pump according to temperature and pressure signals so as to form a multi-stage temperature and pressure change curve, dissolved gas in cooling liquid gradually escapes, and the device has the advantages of being compact in structure, accurate in control, reliable in operation, low in energy consumption and suitable for industrial batch application.

The present application relates to the technical field of laser thermal management, in particular to a vehicle thermal management system carrying a laser and a management method thereof, which can realize laser thermal management under low power consumption and small size. The system uses fuel and phase change material as cold storage medium, which is conducive to reducing the size of the laser cooling system. It can operate respectively for short-time small-power and long-time high-power laser emission modes, save energy consumption, and compared with the traditional cooling system, it is more compact, lightweight, and more suitable for ground vehicle applications.