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Antimony inter-band cascade lasers are new semiconductor lasers based on quantum effects and band engineering. They are combined with the radiation between electrons and holes through the transition between conduction band and valence band. Each active region is connected by a similar quantum cascade Series connection. It combines the advantages of traditional semiconductor interband transition lasers and quantum cascade 30mw green laser based on subband transitions, such as uniform carrier injection, high quantum efficiency, easy wavelength regulation, threshold current density and low power consumption. Therefore, the antimicrobial inter-band cascade lasers have important application prospects in environmental monitoring, medical diagnosis and information gathering in Internet of Things, but their structure is complex and the number of epitaxial layers is large, which makes the material grow very difficult.

By using the photon amplification technique, combined with the statistical properties of the laser and the spontaneous photon, it is possible to make the angular resolution of the telescope exceed the diffraction limit. In the traditional multi-photon microscopy, the ultrashort laser pulse gathers into a close spot on the sample, stimulating the fluorescence to produce an image. And multi-photon-space frequency modulation imaging microscope is to use multiple femtosecond laser pulse at the same time illuminate the larger light area to interfere, in order to build the image.

Technology for the first time to achieve a dual-view 10 watt laser pointer scanning based on real-time stereoscopic imaging and display system, the three-dimensional imaging speed than the traditional point-by-point scanning method to improve the order of one to two orders of magnitude. In other words, the imaging process from the previous few minutes to tens of minutes is completed in a few seconds, and the two-photon stereomicroscopic imaging system provides a new observing tool for 3D real-time imaging and display of living organisms. To observe the transmission of the fleeting neural signal in the neural network. The use of an elongated focused laser beam - Bessel beam to complete the scan, through the control of the beam, you can not do light slices, a one-time will be a thick three-dimensional sample clear imaging.

The development of industrial lasers, relative to scientific applications and medical applications, the requirements of industrial processing is the most advanced. First of all, its working environment is generally more stringent, followed by the laser for a long time reliability, stability, the most stringent requirements. It is mainly used in the cutting, micromachining and non-destructive microfabrication and fine marking of transparent brittle materials. High-power green 500mw laser pointer that can be used in the PCB field are highly representative. Because of its unique high power, in the solar cell dicing, ceramic cutting, including the touch screen manufacturing process can play a lot of role.

The more representative products in the research laser are miniaturized, compact lasers and large energy lasers, mainly used in laser shock enhancement, laser radar, mass spectrometry, including spectral detection. In addition to the industrial laser in addition to the high-power, low-power picosecond lasers, this year also developed a 30-watt green nanosecond, this new laser is the most important feature of the pulse width is relatively narrow, while power Relatively high. Medical line is displayed on the trump card products: medical beauty special picosecond laser. Used in mobile phones, hardware, medical device industry MOPA pulse width adjustable fiber kids laser pointer with high precision, high processing speed, anti-high anti-technical characteristics.

For a given laser power density and material, the cutting speed is in accordance with an empirical formula. As long as the threshold is above the threshold, the cutting speed of the material is proportional to the laser power density, that is, increasing the power density can increase the cutting speed. The power density referred to here is related not only to the laser output power but also to the beam quality mode. In addition, the characteristics of the beam focusing system, that is, after focusing the spot size also has a great impact on laser cutting.

Since the laser power density has a great influence on the cutting speed, the choice of lens focal length is an important problem. After focusing the high power laser pointer beam, the spot size is proportional to the focal length of the lens. After the beam is focused by the short focal length lens, the spot size is very small and the power density at the focal point is very high, which is advantageous for cutting the material; but its disadvantage is that the depth of focus is very short, Small, generally more suitable for high-speed cutting thin materials. As the telephoto lens has a wide focal depth, as long as there is sufficient power density, more suitable for cutting thick workpiece.

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For burning laser pointer welding of diamond saw blade, the need for appearance, microstructure and welding strength and other parameters of the test. The appearance of the main detection of the existence of welding macroscopical defects such as hole cracks, undercuts and not penetration, etc., usually need to be 100% of the detection, significant organizational detection of the main parts of the chemical parts of the inspection, significant changes in the structure and phase structure, The results show that the fine chemical composition of the molten zone has a gradient diffusion, and the transition layer hardness is lower than that of the matrix, which is higher than that of the tip. The welding strength test mainly tests the tensile strength, bending strength, impact toughness and residual stress of the weldment. It is usually necessary to carry out 100% welding strength test, and the residual stress and distribution after welding seriously affect the service life of the diamond saw blade.

At present, there are still some problems in laser welding of diamond saw blade technology, we need to carry out further research, to carry out special laser welding diamond saw carcass or transition layer material formula research, to carry out new ultra-fine or nano-alloy powder research, The research on the mechanism of 3000mw laser pointer welding of diamond saw blades, especially the research of temperature field, flow field, mass field and stress field of laser welding diamond saw blade and the on-line quality monitoring technology of laser welding diamond saw blade process are carried out. In fact, only a comprehensive understanding of the mechanism of laser welding diamond saw blade, it may be developed accordingly the new online quality monitoring technology; only master the theory of pre-alloy powder, it is possible to develop a new ultra-fine or nano-alloy powder and Better use of new ultra-fine or nano-pre-alloy powder to develop a dedicated diamond saw blade.

For large gantry laser cutting machine, to achieve high-speed, high-precision linear cutting, large arc cutting is a common technology, but to achieve a small round cut can only reduce the speed, laser cutting machine efficiency doubled. At the same time to achieve high-precision small round cutting, for large gantry cutting machine must improve the overall rigidity and dynamic performance of the machine. In order to meet the needs of special customers, a laser R & D and production of 2.5G super dynamic performance GHF-4020 high-speed high power laser pointer cutting machine. Up to 400 per minute cutting high-precision small round of the magic speed, compared to the traditional laser cutting machine can only cut 100 rounds per minute, the efficiency increased by 4 times. Its performance has been quite stable, cutting quality, cutting efficiency completely exceeded expectations.

Laser is the best way to optimize most of the existing processing technology at home and abroad. At home and abroad, after two well-known cutting and welding processes such as cutting, welding, surface treatment and cladding, The craft has done a breakdown. For example, for cutting, subdivided into melting-type cutting, vaporization-type cutting, and the melting of the cutting section of the roughness of the cutting, the vertical degree of more refined requirements, etc., which the laser and other ancillary manufacturers have put forward a new Of the high demand, so the industry is even with the integration of one of the key elements.

In the field of fiber laser, fiber lasers will further enhance the application coverage. There is also a saying that the structure of fiber lasers is to optimize the quality of direct semiconductor 1000mw green laser beam cost-effective program, so these two lasers do not conflict, but complement each other. The future In the field of metal processing, fiber laser vitality will be very strong, which may become a new trend. In terms of laser, different wavelengths, different power, different control methods of technology is the core, need a long time to layout. At this core, it is imperative to optimize the structure and technology of existing wavelengths of lasers to meet their potential needs in the current market. Such as higher average and peak power, shorter pulse width and so on.

Quasi-continuous single-mode / multi-mode laser products is characterized by single-mode or multi-mode output, respectively, adapted to cutting and welding, the main application areas are galvanometer spot welding, fine cutting. The direct semiconductor multi-mode continuous 5000mw green laser products are based on the company's more mature pump source introduced, the core feature is a certain anti-high anti-ability, mainly used in soldering, brazing, cladding, sintering, surface treatment and other fields The The principle and structure of different lasers have their own advantages and limitations. Fiber laser has been highly recognized in the field of metal processing because of its high efficiency of electro-optical conversion, flexible transmission optical path, maintenance-free and low cost. On the hot spot.

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Tube cutting applications are the most prominent in the global market for fiber lasers, mainly due to the increasing proportion of products in cardiovascular stent production, because these lasers have unlimited cutting configurations, lower production costs and the ability to eliminate stacking tolerances. Other potential and top panels also include 3D cutting, flat cutting and powertrain applications. Fiber 1000mw green laser have excellent beam steering capabilities that are increasingly being used in 3D cutting applications, while the advantages of flat cutting include the need for closer focusing spot size, higher depth of focus, faster processing Speed and greater working distance, thereby reducing workpiece tolerances.

Due to the increasing proportion of fiber lasers in cost-effective cutting and welding applications, it is expected that the product will achieve a compound annual growth rate of 15.4% in the high power application segment. At the same time, marking applications ranked second, due to FDA for patient safety and trade labeling policy considerations in all medical, dental and surgical devices marked with a unique identification number of regulatory requirements.

In 2016, global excimer lasers and femtosecond lasers increased steadily, with revenues totaling $ 666 million. The sales of excimer laser systems continue to exceed femtosecond lasers. North America remains the largest market, and the Asia-Pacific region is also expected to create profitable markets for global excimer lasers and femtosecond lasers. 2016 - 2026, the market will achieve 5% compound annual growth rate. Significant growth in the elderly population and the rise in the prevalence of diabetes have become the demand for the blue laser pointer system. With the increase in the number of refractive surgery and cataract surgery, more hospitals and ophthalmic clinics are increasing the need for and use of ophthalmic laser systems. At the same time, the strengthening of health care awareness in developing countries and the increase in spending have also boosted this market.

On the application side, 2016, refractive surgery market occupies the laser series of the largest share of income, about 70%. The product in the cataract surgery, cystectomy, laser trabecular plasty and other fields also received the fastest growth. Among them, the cataract surgery market is the second largest application of excimer lasers and femtosecond laser systems. In terms of the region, North America will continue to maintain its leading market position, with 2016 percent of the excimer and femtosecond burning laser systems totaling $ 217 million, or more than 30 percent of the market. Western Europe will continue to promote the application of the product. In addition, the continuous improvement of the medical infrastructure in the Asia-Pacific region is also expected to provide a large number of development opportunities for these products.

Laser lasers, semiconductor lasers, solid-state lasers and fiber lasers will be the mainstream of lasers; laser technology and other disciplines; laser lasers, semiconductor lasers, lasers Combined with the continuous development of laser chemistry, laser medical and other emerging applications, in particular, to focus on the development of precision and micro-processing technology, electronics, semiconductors, communications, optical storage, micro-mechanical manufacturing, biotechnology, environmental and other industries to further promote and apply laser high precision Processing technology, for the traditional processing methods to create unprecedented possibilities; laser processing automation, integration and intelligent level continues to improve, combined with the industrial robot technology, based on the realization of three-dimensional welding, three-dimensional marking, three-dimensional cutting and other multi-dimensional processing , Expand the applicability of 3w green laser technology and application areas.

2016 is a year of laser projector outbreak, from the engineering market to the home market, and then to the education market, everywhere the laser projector new products, it seems that the projection market thriving. And then all this behind is not so bright. 2016 projector sales are expected to 200 million units, compared to 2015 is indeed an increase, but the 2015 sales data as 2014, so in fact the projection market in recent years sales data has been struggling in the 200 million units On the edge, there is no explosive growth.

It is noteworthy that although sales are difficult to climb, but the projector in recent years, a single product price decline is very obvious, so the two together, in fact, the projection market, the total profit growth is not so optimistic. So 2016 is a very intense competition year, although the new light sources such as LED and 5000mw green laser gradually mature to the market has brought a new dawn, but the market environment is not a significant improvement, if you can not expand the market share, New light source of the product is bound to go into the price of the old road competition. So in the long run, the laser light source can bring the stimulus to the projection market out of the difficulties, it is difficult to predict.  

Nursing laser cleaning is divided into two categories: one is the stone and the appearance of the dust attached to a wavelength of laser energy absorption coefficient of different, so that the laser energy is fully absorbed by the dirt absorbed, and then by thermal expansion or vaporization evaporation, And vaporization of the composition of the vapor flow from the stone to achieve the purpose of cleaning. The other is the stone and the appearance of the attachment of the high powered laser pointer beam absorption coefficient is different from the laser beam is adjusted to a specific energy value, without destroying the stone surface, while the surface attachment can be high-power pulse laser shock stone surface , So that part of the beam into sound waves, sound waves in the impact of stone after the appearance of back, the return of some of the laser and the role of sound waves to form a resonance wave, so that a slight burst of crack, resulting in crushing, and thus from the stone appearance.

With laser welding and cutting process has been many years of history, but with laser cleaning stone surface is a relatively young technology. Although this process can remove all organic materials, but in the stone care process applications until recently began. I believe that with the development of laser and laser cleaning technology continues to improve, will be in a variety of cleaning areas get more and more applications.

The quality of laser cutting machine is mainly to see the quality of cutting, which is the most direct way to test the quality of equipment. For new customers, in the purchase of equipment will require look at the laser cutting machine proofing, proofing in addition to watching the cutting speed of the device, it is to look at the quality of cutting the sample. Laser cutting section will form a vertical pattern, the depth of the groove determines the roughness of the cutting surface, the more shallow the lines, the more smooth cutting section. Roughness not only affects the appearance of the edge, but also affect the friction characteristics, in most cases, the need to minimize the roughness, so the more shallow lines, the higher the quality of cutting. The verticality of the cutting edge is very important, away from the focus, the 1000mw green laser beam becomes divergent, depending on the position of the focus, the cutting is widened toward the top or bottom. The cutting edge deviates from the vertical line by a few millimeters, the more vertical the edge, the higher the cutting quality.

Cutting width. The width of the cut does not generally affect the quality of the cut, and the cut width has an important effect only when a particularly precise profile is formed inside the part, since the width of the cut determines the minimum internal meridian of the profile. The increase. So want to ensure the same high precision, no matter how much the width of the workpiece, the workpiece in the laser cutting machine processing area should be constant.

High-speed cutting thick plate, the molten metal does not appear in the vertical 3000mw laser pointer beam below the incision, but will be sprayed in the laser beam behind. As a result, the curved lines are formed at the cutting edge, and the lines follow the moving laser beam. To correct this problem, the feed rate is reduced at the end of the cutting process, and the behavior of the lines can be largely eliminated. The formation of the burrs determines a very important factor in the quality of the laser cutting, since the removal of the burrs requires additional effort, so the amount of burrs is serious and how much is able to visually determine the quality of the cutting.

The laser cutting machine first touches a special liquid with oil on the surface of the workpiece before it begins to melt and pierce. During the cutting process, due to gasification and the various materials are not used, the customer uses the wind to blow the cut, but the upward or downward discharge will also form deposition on the surface. Depression and corrosion. Depression and corrosion have an adverse effect on the surface of the cutting edge, affecting the appearance. They appear in the general should be avoided in the cutting error. Heat affected area. In 5000mw green laser cutting, the area is heated along the area near the incision. At the same time, the structure of the metal changes. For example, some metals will harden. The heat affected area refers to the depth of the area where the internal structure changes. If the cutting causes the part to drastically heat, it will deform. This is especially important in fine machining because the contours and connectors here are usually only a few millimeters wide. Control of laser power and the use of short laser pulses can reduce component heat and avoid deformation.

Laser cutting machine in the cutting process, the auxiliary gas is essential! Which we often use oxygen and nitrogen, of course, the higher the purity of the gas, the quality of cutting will be better. So, in order to achieve a better cutting effect, the requirements of the auxiliary gas is relatively high! Although the air can be used as auxiliary gas, but because the air contains water and oil, if not treated, will cause the lens pollution, cutting head instability, so that the cutting effect and quality is not compliance. Therefore, in the use of air cutting, the need for fiber burning laser pen cutting machine equipped with cold and dry machine, so that a very good solution to this problem. The cold and dry machine can be forced to cool the compressed air below the required dew point temperature, which will contain a large number of water vapor, oil mist condensed into droplets, separated by gas and liquid, discharged from the drainage machine, the compressed air drying.

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Artificial electromagnetic materials are material materials that control light in an unusual way at nanoscale. They can be used to develop foreign equipment such as invisible cloaks to quantum computers. But the problem is that the metamaterials they use usually contain metals that absorb energy from light and convert it into heat. As a result, a portion of the optical signal is wasted, reducing the efficiency of the device. A photonics 500mw laser pointer research team led by Shaya Fainman, an electrical engineering professor at the University of California, San Diego, demonstrated the use of metallic materials that add excitation light to compensate for these optical losses, an optical semiconductor.

Laser cutting has the same advantages as conventional processing methods. In the thermal cutting method, oxygen-combustible (such as acetylene) cutting and plasma cutting can not concentrate as much energy as a laser beam in a very small area, resulting in large incision width, large heat affected area and more obvious deformation of the workpiece. Oxygen- combustible cutting equipment is small, less investment, can cut up to 1m thick steel plate, is a very flexible cutting tools, mainly used to cut low carbon steel. However, due to its large heat affected area, cutting speed is low, the incision appears serious jagged and corrugated. Therefore, it is rarely used to cut the thickness of 20mm or less and require accurate size of the material. Plasma cutting is similar to 400mw laser pointer cutting speed, significantly higher than acetylene flame cutting. But its cutting energy is low, trimming at the top of a round head, cut from the obvious waveform.

In operation, but also to prevent the arc generated by the UV radiation on the operator of the damage. Conventional fiber lasers use fiber-coupled technology to couple multiple laser outputs together, resulting in lower brightness of the output laser. The new generation of fiber lasers uses an innovative architecture that combines the pump diodes and drivers into separate pump modules. The gain fiber is mounted in a configurable gain module that can output more than 8kW of laser power. The gain module is based on the novel main oscillator / power amplifier (MOPA) design, enabling high-brightness 300mw laser pointer output. In addition, the Ennie laser also uses a reliable integrated backlash isolator to protect all modules from the impact of backlit light, can be high anti-material for full power, uninterrupted, stable processing. These two technological innovations play a vital role in RLS applications.

For iron and steel enterprises, the establishment of laser processing sheet metal distribution center, has a unique advantage. First, the production of sheet metal production and sales base, over the years to establish a wide range of sales channels, customer relations and sales network, the production and sales base of the plate, ; The small batch, multi -species needs of users, can directly provide the finished product after 10mw laser pointer precision processing to extend the service chain of the product, resulting in a secondary benefit; cutting waste can be quickly recycled; at the same time, reduce the intermediate transport links, Cost savings, to maximize the profits. And behind all this, laborers can provide long-term, strong technical support.

This is the first time with metal and semiconductor coexistence of a material. If light is one of the ways of polarization, the metamorphic light will be like metal, and when light is polarized in other ways, the metamaterial absorbs and emits light in different colors, like semiconductors, "says Smalley. The new metamaterials, first grown into a crystalline semiconductor material, are called indium gallium arsenide, are on the substrate. Then they use plasma blue laser pointer high-energy ion etching to narrow the grooves to achieve the semiconductors, create 40 nanometers wide and the line spacing of 40 nanometers.Finally, they use silver to create an alternate striped pattern and a silver nanocrystalline trench.

Laser cutting is a kind of high energy density controllable non-contact processing. It focuses the burning laser beam into a spot with a minimum diameter of less than 0.1mm, so that the power density at the focal point can exceed 107W to 108W / cm ~ 2. The irradiated material is quickly heated to the vaporization temperature and evaporated to form pores. As the beam moves relatively linearly with the material, the apertures are continuously formed with slits of about 0.1 mm in width. The cutting also adds auxiliary gas to the material to be cut to accelerate the melting of the material, blown away the slag or protecting the slits from being oxidized.