69 results about "Chemical laser" patented technology

The invention relates to a singlet state oxygen generation method, and belongs to the technical field of chemical oxygen-iodine lasers. The method comprises the following steps: mixing an alkaline ionic liquid insoluble in water with an aqueous hydrogen peroxide solution to form a two phase transfer system, and reacting the transferred ionic liquid phase with chlorine to generate singlet state oxygen in order to realize water and singlet state oxygen isolation. The method is helpful for reducing the quenching effect of water on singlet state oxygen, and reduces the content of water in the singlet state oxygen, and the alkaline ionic liquid has an enrichment effect on hydrogen peroxide to make effective solving of the bottleneck problem of hydrogen peroxide concentration restriction in the raw material regeneration process of chemical oxygen-iodine lasers under traditional technological conditions be possible, so the method is of great significance to improve the singlet state oxygen yield of the chemical oxygen-iodine lasers, reduce the water content of the singlet state oxygen and solve the raw material regeneration problem.

The invention provides a laser device for realizing semiconductor laser beam coupling of a parallel plate prism combination, which consists of two semiconductor laser alternating arrays, two fast axis collimation lenses, two slow axis collimation lenses, a parallel plate glass prism stack, a beam expanding system consisting of two lens pillars and a focusing system consisting of balsaming lenses, wherein all the parts are arranged in parallel; and the invention realizes the high power of kilowatt laser, and overcomes the defects of large volume, low energy efficiency, short service life and the like of a chemical laser, a CO2 laser, a lamp pump and a semiconductor laser pumping the Nd:YAG fundamental frequency of which is 1064nm. The power of the high-power semiconductor laser light source related by the invention can be output in hectowatt to kilowatt and finally can be coupled with an optical fiber. Under the condition of the same power, the volume of the laser device is 1 / 3-1 / 10 of that of other lasers, the operation cost is 1 / 4-1 / 20 of that of the other lasers, and the service life can be over 10000 hours which is 5-10 times of that of the other lasers.

A laser weapon cartridge for disabling and / or destroying a target is disclosed. In an embodiment, the laser weapon cartridge may be compatible within a ballistic gun. For example, the laser weapon cartridge may be placed in the breech of a gun and armed by the gun's firing device. The laser weapon cartridge may assess precise alignment of the optical axis of the laser with a target. Precise alignment maybe based on RF energy from the target. RF energy may be detected by an antenna array coupled to the laser weapon cartridge. When alignment of the target with the laser is detected, the laser weapon cartridge may fire a beam of laser light toward the target. In an embodiment, the laser light may be generated by a chemical laser.

The invention discloses an oxiodide chemical laser based on pure chlorine gas as reacting gas, which is characterized by the following: butting sprayer component on the outlet of single heavy oxygen generator; setting the hypersonic oxiodide composite sprayer in the sprayer component as array pattern; setting the caliber of iodine injector at phi 0.5mm and the distance of two rows of iodine injector at 2mm; making the even distance between injector and sprayer throat at 3-5mm; designing the Mach number of sprayer at 2.2-2.8 and each unit throat breadth of sprayer multiplied by 2 at 4-6 mm; setting the breadth of outlet multiplied by 3 at 10-15mm and gas-liquid reacting specific surface area of single heavy oxygen generator at 4-6cm-1; making the length of even gas-liquid reacting area multiplied by 4 at 8-12cm along flow direction and chlorine gas flux of unit cross-section at 2.8mmol / s.cm2.

The invention relates to a continuous iodine supply device, in particular a rapid iodine supply device for a chemical oxygen-iodine laser which comprises six part: an iodine generator for storing iodine and placing an infrared radiating element, an infrared radiating element control and display system for controlling the rapid heating and displaying the heating state of the iodine generator, a carrier gas addition system for injecting carrier gas He to a venturi tube and controlling the flux of iodine, a date acquisition system for acquiring temperature pressure of each acquisition point, an iodine concentration testing system for measuring the iodine concentration, and an iodine reclaiming device for reclaiming the iodine and preventing the iodine pollution on a vacuum system. The rapid iodine supply device has a simple structure, low expense, convenient operation, high efficiency and safety in order that a common lab has simple implementation and good effect in rapidly generating the iodine with certain flow rate.

The invention discloses a preparing method of singlet oxygen with solid hyperoxide or hyperoxide as chemical source, which comprises the following steps: setting alkali metal of inorganic solid or hyperoxide of alkali earth metal or superoxide as chemical source under the condition of room temperature and vacuum pressure; reacting with halide gas; getting singlet oxygen. This invention is a chemical reaction system, which possesses high effect, safe and strong adaptability.

The invention discloses a supersonic oxiodide mixed sprayer of oxiodide chemical laser based on nitrogen as dilute gas, which is characterized by the following: setting two rows of iodine sprayer at subsonic segment of sprayer with caliber at phi0.5mm; setting the distance between two iodine sprayers at 2mm and the even distance of two rows of sprayer and sprayer throat at 3-5mm; designing the Mach number of sprayer outlet at 2.2-2.8 and each unit throat breadth of sprayer multiplied by 2 at 4-6mm; setting the breadth of sprayer outlet at 10-15mm. The invention saves the operating cost greatly, which is beneficial for industrial applying of oxiodide chemical laser.

The invention relates to a variable line selection stable resonant cavity suitable for an air flow chemical laser. A stable cavity structure is adopted for the device. A plano-concave reflector, a Brewster plate, a gain media, a Brewster plate, a diaphragm and a plane diffraction grating are successively arranged along an output dimension of laser. An off-axis parabolic reflector, a shutter system and a planar reflector are successively arranged in a first-order diffraction optical path. According to the variable line selection stable resonant cavity, a fixed diffraction grating is used for the laser device. The diffraction grating is used for realizing different diffraction angles of laser with different wavelengths. Through controlling and selection of the shutter system to branch lines with different wavelengths, outputting of air flow chemical laser in a selected line is realized. The variable line selection stable resonant cavity of the invention has advantages of: compact structure, high optical beam quality, high stability, quick line selection and outputting of the laser, etc. The variable line selection stable resonant cavity can be widely applied for the fields of laser material processing, environment monitoring, etc.

The invention provides a long-time iodine flow supply device, and relates to the technology of gas supply of a continuous wave oxygen-iodine chemical laser. The main body of the device has two parts: an electric heating iodine vapor storage tank and a combustion chamber for the combustion of two types of gas. The electric heating iodine vapor storage tank enables solid iodine to be heated to a certain temperature and enables the solid iodine to be changed into liquid iodine. Moreover, there is iodine vapor with a certain saturated vapor pressure on the liquid level. The combustion chamber is a closed space which is used for the combustion of carbon monoxide and oxygen, and the generated high-temperature and high-pressure gas enters the iodine vapor storage tank after the temperature adjustment through diluent gas. High-temperature carbon dioxide gas enters the liquid phase of the iodine vapor storage tank and then forms bubbles, thereby enabling heat energy to be transferred to the liquid iodine and enabling the iodine to be vapored into iodine vapor, wherein the bubbles comprise iodine vapor with a certain density. When the bubbles continue to rise in the liquid phase, the phenomenon of mass and heat transfer continues to happen till the balance is reached. The bubbles flow out from the liquid phase, enter a gas phase, pass through a gas supply pipe and then enter a laser main body.

The invention relates to a concurrent flow ultrasonic oxygen-iodine mixing nozzle for research into light extraction operation of an ultrasonic iodine-injected chemical oxygen-iodine laser or a concurrent flow ultrasonic mixed flow field. The nozzle is mainly characterized in that an oxygen air flow and an iodine air flow are both ultrasonic and are subjected to concurrent flow mixing; an iodine nozzle outlet is provided with two rows of special disturbance fins for enhancing a mixing effect; through a flange sinking design on a nozzle module, it is ensured that a flow field is visual after flowing along a flow direction nozzle outlet, and the test research on a mixed flow field is facilitated. For realizing the aforementioned functional characteristics of the nozzle, a specific processing technology process is designed. Compared to a subsonic-speed transverse flow iodine-injected mixing nozzle commonly used on a conventional chemical oxygen-iodine laser, the iodine injection mode and structural design of the nozzle provided by the invention are novel, and convenience is provided for the design research on an ultrasonic iodine-injected chemical oxygen-iodine laser and the research on a concurrent flow ultrasonic mixed flow field.

The invention herein is directed to a dual-chamber combustion laser assembly having lighter weight (per unit flow area), a more compact, flexible configuration for packaging in spacecraft, aircraft, or ground mobile vehicles, higher mass efficiency from lower heat loss and proven power extraction efficiency of linear lasers, superior output beam quality by incremental compensation of gain medium optical path disturbances and by reduction in time-dependent variations in structural and gain medium characteristics, lower cost and shorter fabrication time for modular dual flow laser and linear optics, more efficient pressure recovery with side-wall isolation nozzles and compact diffuser configurations, and increased small signal gains for more efficient extraction of overtone power.

The invention relates to a method for simultaneously measuring HF rotation temperature and vibration-level particle number distribution. The method is based on a spontaneous radio fluorescence spectrum technology and is a novel method for simultaneously measuring HF molecular rotation temperature and vibration-level particle number distribution through a straight-line graphic method. The method is mainly applied to the technical field of HF chemical laser testing and diagnosis, can simultaneously measure the rotation temperature and vibration-level particle number distribution, and can carry out plotting only by simply processing the P branch spectrum line intensity of each vibration and rotation spectrum band of an HF base frequency spontaneous radio fluorescence spectrum. The method has the advantages of being simple and convenient to implement, visual, accurate, non-invasive and the like. By the adoption of the method, simultaneous and rapid measurement of rotation temperature in an HF chemical laser and vibration-state each-level particle number distribution can be achieved.

The invention relates to a chemical laser output device for sodium atoms in visible wave band, in particular the chemical laser for the sodium atoms in the visible wave band. N2O and main air current passing through a high-temperature tubular furnace hearth intersect and react in a gas outlet to form a SiO(b<3> pi) synthetic region; Na steam and the main air current passing through the synthetic region are mixed to form a near resonant energy transmission region; the region produces a sodium atom-Na(4d<2>D) in an excited state; the outer side of the near resonant energy transmission region is provided with an optical resonant cavity; the direction of optical axis of the optical resonant cavity is vertical to the direction of the main air current coming out from the near resonant energy transmission region; a spectrograph is arranged on an output optical circuit of the optical resonant cavity; and the spectrograph is connected with a signal of a computer testing control system through a circuit. The laser device has the advantages of compact structure and easy realization and control.

The invention is an electrode structure of flow gas discharging; concretely it is a compound electrode structure of lengthways flow gas discharging system that includes anode, quartz tube, double cathode, the anode is column cavity structure, it is connected with the quartz tube via airproof packet, two double cathodes are placed separately, the first cathode is ring cavity structure and it is connected with the quartz tube via airproof packet, the anode and the quartz tube, the quartz tube and the first cathode forms airproof structure, the second cathode is screw coil pipe structure, it is placed on transition section of air flow backward position outside the first cathode. The invention adopts double cathode structure to obtain perfect discharging stability; the infusing power is improved greatly; for chemical laser induced by discharging which is based on active particle, the production of active particle is increased greatly, the double cathode structure increases the utilizing efficiency of the active particle.

The invention relates to a nozzle module for transversal flow injection iodine mixing nozzle experiment research. The module is applied to the experiment research of an ultrasonic chemical oxygen-iodine laser key part, i.e., a nozzle module. The module, through a nozzle fixation plate capable of convenient dismounting and replacement, enables nozzles with various structural designs and a nozzle throat pitch to be conveniently replaced or adjusted. The establishment of the experiment apparatus provides convenience for the experiment research of a transversal flow injection iodine mixing nozzle array, and greatly improves the nozzle design of a chemical oxygen-iodine laser and the efficiency of air-flow operation condition experiment research.

The invention relates to a testing device of an oxygen / iodine ultrasonic mixing heat flow field. A high speed CCD camera-based image testing device is adopted for quantitative testing of the mixing condition of a heat flow field of a chemical oxygen-iodine laser (COIL) with ultrasonic iodine injection (a real flow field during operation of the chemical oxygen-iodine laser). The device comprises a mixing flow field testing section, a light filtering device, a high speed CCD camera and a computer data processing system. Through special design of the testing section, the device makes the oxygen iodine mixing flow field visible at a jet pipe outlet along the flow direction in a direction perpendicular to the jet pipe axis; with the combination of the light filtering device, the high speed CCD camera is used for imaging the oxygen / iodine mixing flow field, and quantitative values of parameters related to the flow field mixing are obtained through digital image processing. Through design of a rotating disc, the device enables the attenuation rate of an attenuation sheet to be convenient to adjust, and thus the testing device is suitable for various operation conditions of COIL.

The invention discloses a high-power continuous wave deuterium fluoride / hydrogen fluoride chemical laser. The high-power continuous wave deuterium fluoride / hydrogen fluoride chemical laser comprises a main oscillator and 2N+1 amplification levels arranged at the back of the main oscillator, wherein the N is a nonnegative integer, the main oscillator mainly comprises an unstable resonator mirror and a gain module, and one light beam overturning device is at least arranged on an optical path between the first level of the 2N+1 amplification levels and the main oscillator and / or an optical path between any two adjacent amplification levels. The high-power continuous wave deuterium fluoride / hydrogen fluoride chemical laser disclosed by the invention has a function of correcting deviation of transmission directions of light beams, has capabilities of light intensity homogenization and stray light inhibition, and can be used for outputting high-quality laser beams.

The invention provides a confecting method of new type oxygen-iodine chemical laser chemical fuel, that is under room temperature and atmospheric pressure, the solid alkali metals peroxide or superoxide is dissolved in the ice water mixture to be solution, the reaction between the solution obtained and chlorine can generate the singlet oxygen efficiently needed by the oxygen-iodine chemical laser. The raw material needed in the method is easy to get, and the storage and transportation are simple, it is safer and quicker than confecting cause of BHP liquid in traditional COIL.

The invention relates to a testing method of an oxygen / iodine ultrasonic mixing heat flow field. Based on the characteristics of the oxygen / iodine ultrasonic mixing heat flow field in a chemical oxygen-iodine laser, with a high speed camera, a testing method of an oxygen / iodine ultrasonic mixing heat flow field is established. The testing method mainly comprises two parts: one part is to establish a set of experimental testing methods through a light filtering attenuating device based on the spectral component characteristics in an oxygen / iodine mixing heat flow field; the other part is to define a series of parameters for flow field quantitative evaluation according to the requirements of oxygen / iodine mixing heat flow field research and based on images obtained by the above experimental testing methods, to provide values of various quantitative parameters under various experimental conditions by a digital image processing program, and to perform quantitative evaluation of the developing process of the oxygen iodine ultrasonic mixing flow field in the chemical oxygen-iodine laser. The method is simple in structure, and easy to realize.

The invention belongs to the technical field of temperature measuring and discloses a temperature measuring method based on an HF first overtone emission spectrum, for the purpose of solving the temperature measuring problem of the ultrasonic flow field of an HF chemical laser. The method comprises: using a near-infrared spectrometer to measure HF first overtone emission spectrum signals, and then using the vibration-rotation intensity distribution formula of the HF first overtone emission spectrum to carry out numerical fitting on obtained data so as to calculate the temperature of a measuring system. The method can be applied to temperature distribution testing of different positions (a jet pipe outlet, an optical cavity and an optical cavity downstream ) and different stages (non-laser output and laser output) of an HF chemical laser flow field and can be popularized to other systems generating high vibration state HF (V>=2). The method has the advantages of simplicity, high precision, good stability and non interference with a testing body.

The invention discloses a device for measuring infrared band chemical laser linewidth. The device mainly comprises a chemical laser, a narrow linewidth laser and a data acquisition card, wherein laser beams outputted by the chemical laser and the narrow linewidth laser are combined, sequentially pass through a fast response detector, a radio frequency filter and a power detector and then are inputted into the data acquisition card; narrow-linewidth laser reflected by a narrow-linewidth laser device passes through an optical multi-pass absorption cell and a photoelectric detector, and a signal outputted by the photoelectric detector is inputted into the data acquisition card; the narrow-linewidth laser reflected by the narrow-linewidth laser device is inputted into a wavelength meter through a reflecting mirror in sequence, and the wavelength meter outputs data and inputs the data into the data acquisition card. The invention further discloses a method for measuring the infrared band chemical laser line width. The method is high in measurement precision and simple and convenient in test process, and an effective method is provided for accurately and rapidly measuring the line width of the infrared band chemical laser for engineering application.

The invention relates to a high-Mach-number low-temperature spray tube for HF / DF chemical laser, and belongs to the field of HF / DF chemical laser spray tube design. A Russian newest unit segmentation scheme of the HF / DF chemical laser spray tube is employed, ultrasonic and ultrasonic mixed concepts of a traditional high-Mach-number low-temperature spray tube are introduced, and the flow whirlpool technology of RAMP and DEFLECTOR spray tubes is used. The high-Mach-number low-temperature spray tube for HF / DF chemical laser has the advantages that high mach number can be realized in a larger throat channel of the spray tube, processing is simple, influence of thermal deformation on the throat channel in the operation process is greatly reduced, and the service life of the spray tube is prolonged; the penetration length needed by injecting H2 air flow into a main spray tube is greatly reduced, and the mixing efficiency is higher; and the temperature and pressure of an optical cavity are lower, the gain of the optical cavity and the work pressure of a combustion room are greatly improved, and the volume efficiency, energy flow density and specific power of HF / DF chemical laser are improved.

The invention relates to a two-stage injection amplification apparatus based on a large-power airflow chemical laser system. The apparatus comprises a seed laser, a primary injection amplifier and a secondary injection amplifier. The apparatus employs such a structure that seed laser is injected to a primary laser amplifier for amplification first and then is injected to the secondary amplifier for amplification output. The seed laser is a single-mode line-selection chemical laser, the primary injection amplifier employs an "8-shaped" annular cavity structure, and the secondary injection amplifier employs a rectangular cavity structure so as to realize amplification output of line-selection airflow chemical laser. According to the invention, the apparatus can realize high-power, single-mode and line polarization output of the line-selection chemical laser, thereby being widely applied to such fields as laser physics, laser chemistry and the like.

The invention relates to a method and a device for monitoring energy of a non-chain pulse chemical laser in real time, which realize the non-insertion energy monitoring of a high-power high-repetition-frequency non-chain chemical laser. The method mainly comprises the following steps: firstly, adjusting tunable narrow linewidth laser parameters according to characteristic spectral lines of gas molecules in a laser to be detected; secondly, splitting the tunable narrow linewidth laser beam into beams and respectively and simultaneously irradiating a gain area and a non-gain area of the laser tobe tested; and finally, respectively collecting the laser intensity passing through the gain region and the non-gain region of the laser to be detected to obtain absorption spectrum curves of the gain region and the non-gain region of the laser, and calculating to obtain the energy of each pulse in the process of the laser repeating frequency operation. The concentration of an activating substance (HF molecule) formed by a single pulse of the laser is measured by an optical non-contact method, and the pulse energy of the non-chain pulse chemical laser is obtained by calculation, so that otherlight splitting elements are prevented from being introduced into an output light path of the laser, and the real-time monitoring of the laser energy is realized while the output light path of the laser is simplified.

The present invention relates to a technology for measuring HF high-vibration-state particle number distribution by using low-resolution near-infrared fluorescence spectrum, wherein the technology is based on the spontaneous radiation fluorescence spectrum technology, and is a new method for measuring the HF molecule high vibration excitation state energy level particle number distribution. According to the present invention, the method is mainly applied in the technical field of chemical laser test diagnosis, and is produced for simplification of the vibration excitation state particle number distribution measurement in the HF chemical laser system; with the method of the present invention, only the intensities of a plurality of P branch spectrum lines of the HF fundamental frequency spontaneous radiation fluorescence spectrum are subjected to simple adding, and characteristics of simpleness, convenience, high precision, non-invasion and the like are provided; and with the method of the present invention, the rapid measurement on various energy levels of the high vibration excitation state particle number distributions in the HF chemical laser can be achieved.

The invention discloses a large-power pulse air-flow chemical laser apparatus. The apparatus is successively provided with a flat concave reflector, an electro-optical adjusting Q crystal, a polarizer, a flat concave output coupling mirror, a planar holophote, a telescope system, an optical isolation system, a flat concave back-cavity mirror, an activation medium gain region, a scraper mirror and a flat convex front-cavity mirror along the advancing direction of output laser. According to the utility model, the laser gain medium in the same gain region is utilized, and through electro-optical adjusting Q pulse laser amplification, large-power pulse oxygen-iodine chemical pulse output can be obtained. Besides, the large-power pulse air-flow chemical laser apparatus has the advantages of compact structure, high energy, high repetition frequency, narrow pulse width, high efficiency, good light beam quality and the like, thereby being widely applied to such fields as laser material processing, underwater operation, mining industry exploitation and the like.

The invention relates to an electrochemical reactor for regeneration of chemical oxygen-iodine laser materials and a regeneration method. The reactor is formed by successively assembling a cathode plate, a cathode electrode, a cathode frame, a diaphragm, an anode frame, an anode electrode, an anode plate and the like, wherein the cathode frame and the anode frame are both formed by processing of acid and alkali resistant polymers. After assembled together, the cathode frame, the diaphragm and the cathode electrode are encircled to form a cathode compartment, and the anode frame, the diaphragm and the anode electrode are encircled to form an anode compartment. By the reactor, an aqueous solution of a chemical oxygen-iodine laser's product potassium chloride or sodium chloride and oxygen undergo an electrochemical reaction to be directly converted to chemical oxygen-iodine laser's required chemical raw materials chlorine and an alkaline hydrogen dioxide solution. Thus, regeneration of chemical oxygen-iodine laser materials is realized. The invention is suitable for field regeneration and reuse of chemical oxygen-iodine laser's chemical materials.

The invention relates to the technical field of pen manufacturing, in particular to an anti-counterfeiting sign pen, and aims to solve the defects that the existing anti-counterfeiting sign pen is difficult for anti-counterfeiting of artificial handwriting, and the handwriting identification is realized by experts with rich experience, higher expenses and more time by developing the anti-counterfeiting sign pen which can provide convenient and quick anti-counterfeiting writing and handwriting identification. A steel ball is arranged on a pen point. The anti-counterfeiting sign pen is characterized in that marks are scratched on the surface of the steel ball and comprise Chinese fonts, foreign language fonts, patterns and symbols; the aims of performing the anti-counterfeiting on the marks on handwriting lines by an amplifying glass is achieved. Scratching methods comprise a physical laser scratching method and a chemical laser scratching method; preferably, the patterns caused by corrosion with different degrees from different tissues on the surface of an alloy steel ball are marked by adopting acid. The anti-counterfeiting sign pen disclosed by the invention has the advantages of low production cost and anti-counterfeiting effect that the handwriting is easy to identify. The product has a broad application prospect in signature for business activities, writing of legal instruments and important documents and the like.