In laser marking, the extremely thin laser beam after focusing is like a cutter, which can remove the material on the surface of the object point by point. Its progressiveness lies in that the marking process is non-contact processing, which does not produce mechanical extrusion or mechanical stress, so it will not damage the processed object; Beca...
2022-12-191K00The basic principle of laser marking is that a high energy continuous laser beam is generated by a laser generator. The focused laser acts on the substrate material, making the surface material melt instantaneously, or even vaporize. By controlling the path of the laser on the material surface, the required graphic marks are formed. Three methods o...
2022-12-191K00Recently, LLNL of the United States successfully achieved "net energy gain" in nuclear fusion reaction for the first time, which has become a major breakthrough in the dominating scientific and technological circle. Although the commercialization of controllable nuclear fusion will take at least several decades, many enterprises and research instit...
2022-12-1993200Under the background of upgrading automobile intelligent manufacturing, laser welding technology is playing a key role to meet the performance of automobile manufacturing in light weight, safety, intelligence and environmental protection.At present, high-strength aluminum and cast aluminum materials have brought a series of advantages to au...
2022-12-1979500Laser cutting technology is developing faster and faster. At present, laser cutting technology has been widely used in many fields. What are the advantages of laser cutting technology?1. High precision: positioning accuracy is 0.05mm, and repeated positioning accuracy is 0.02mm.2. Narrow kerf: the laser beam is focused into a small ...
2022-12-1695200The application of laser cutting technology involves more and more fields, which brings a lot of improvement to social production efficiency. So, what is the development direction of laser cutting technology in the future?1. With the development of laser towards high power and the use of high-performance CNC and servo system, high processin...
2022-12-1694000Recently, NASA announced that it has delivered the first spacecraft flight hardware of the Lunar Pathfinder mission to the European Space Agency (ESA). In this delivery task, the laser retroreflector array (LRA) in the flight hardware has become a highlight.Previously, NASA's Goddard Space Flight Center in Greenbelt, Maryland, developed a l...
2022-12-161K00Laser cutting of metal materialsAlmost all metal materials have high reflectivity to infrared ray at room temperature. For example, the CO2 laser absorption of 10.6 pum is only 0.5%~10%. However, when the focused beam with the power density exceeding 106W/cm2 shines on the metal surface, the surface will start to melt in a few microseconds. The ab...
2022-12-151.2K00Recently, the State Key Laboratory of Intense Field Laser Physics of Shanghai Institute of Optics and Precision Machinery, Chinese Academy of Sciences has made progress in the field of circularly polarized laser controlling single-layer graphene to generate reverse photocurrent. The relevant research results were published in Optics Express under t...
2022-12-1569700Recently, Yole, a well-known semiconductor analyst, released a report on the laser industry. It is estimated that the edge emitting laser (EEL) market will grow from $3.5 billion in 2021 to $7.4 billion in 2027, with a compound annual growth rate (CAGR 2021-2027) of 13%. Growth will continue to be driven by optical communications, such as optical m...
2022-12-1488600Recently, Xuchuang Technology Research Institute launched the latest research results - the industry's first high-power, antireflection laser. This laser breaks through the dependence of traditional lasers on isolators, and can realize the more advantageous transmission performance in small size pluggable external light source module (ELSFP) and ph...
2022-12-1494400Three photon (3P) excitation of fluorescent proteins and probes has aroused great interest, especially in the field of neuroscience applications. As confirmed by Chris Xu and other researchers, an important reason is that the 1300 nm and 1700 nm wavelength windows used for three photon excitation bring deeper penetration.Three photon excita...
2022-12-141K00Laser cutting operates in continuous or repetitive pulse mode. In the cutting process, the laser beam is focused into a very small spot (the minimum diameter can be less than 0.1mm), which makes the focusing reach a very high power density (can exceed 106W/cm2). At this time, the heat input by the beam (converted from light energy) far exceeds the ...
2022-12-1490200Laser is helping us to develop clean, intensive and efficient fuels, which in turn requires large-scale clean energy production to help solve the world energy crisis. The net energy obtained from fusion reaction may be an important step towards the goal of creating unlimited clean energy in the near future.On December 12, researchers from t...
2022-12-1485600Laser is another important invention after nuclear energy, computer and semiconductor since the 20th century. It is called the "fastest knife", the "most accurate ruler" and the "brightest light". In Wuhan East Lake High tech Zone (also known as "China Optical Valley"), the birthplace of China's laser industry, laser enterprises represented by Huag...
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