The intracavity frequency-doubled lasers generally requires a high fundamental power and harmonic power good output beam quality and stability, specific consideration should be given to the following factors and […]

Then in the excited state E2 atoms may be the stimulation of this photon transitions to the lower energy state of the E1 and launch an identical photons of the incident photon, which is by the stimulated emission […]

Accelerate the modernization of China's national defense technology laser technology has been applied in the military, ranging, direction, guidance, communications and tactical weapons, play an important role in […]

The Los Alamos research team built a m tunable free electron laser, average power up to 3kW, 100s pulse width, the conversion efficiency of 0.4%. How to improve the energy conversion efficiency of the free […]

Electrode is generally a hollow cylinder of nickel; one end of the cavity is gold-plated reflecting mirror and the other end is a part of the mirror polished germanium or gallium arsenide. When high voltage […]

Furthermore, excimer lasers, free electron lasers, chemical lasers, fiber lasers and other laser devices of the new development and a better prospect. This section is only for a brief introduction of these lasers. […]

Laser technology introduction and the development process. The world's first laser was born in 1960, China in 1961 developed the first laser, 40 years, laser technology and the rapid application development, with […]

This will give investors an attractive return on laser cutting not only the processing speed, as much as possible to reduce the chip size to increase the yield of each wafer, and even the rectifier fab. Laser […]

By regulating the laser parameters can not damage the surface of the substrate on the basis of the effective removal of the surface of different types of pollutants, so that the clean surface such as a new […]

Reduction of point cloud data, point cloud data segmentation, different sites of the scanned data registration and fusion; model reconstruction phase involved the reconstruction of three-dimensional model, the […]

Human "bird's eye view of" the dream of the Earth gave birth to the rise of remote sensing science, hyperspectral remote sensing is the most cutting-edge field of remote sensing science. After the founding of new […]

A large number of user experiences and lessons learned within one year after the users to buy the three-dimensional laser scanner, many manufacturers will have some problems, and had returned to the foreign […]

Constructed feature lines such as boundary points, corner points, feature points and characteristics of the surface, in order to reconstruct the three-dimensional target. This paper studies the rules of building […]

Modeling less demanding on the roof, but also can make use of existing map scanning digital vector data (or existing vector data or ground-based measurement data) to build the plane, according to the height of the […]

Measurement of non-contact. This feature to solve the area of risk measurement, measurement of flexible goals, the need to protect objects (such as heritage), staff can not reach the location of the measurement. […]

Laser has the advantages of high brightness, monochromatic, narrow beam, the laser itself has a very accurate ranging capability, ranging accuracy up to several centimeters, and the accuracy of the LIDAR system of […]

The lidar atmospheric transmission performance is one of the sunny atmosphere of the laser effect, in which the molecular absorption and scattering with the wavelength and the longer the distance the greater the […]

Introduction: The laser radar is the product of the combination of traditional radar technology with modern laser technology, laser with high brightness, monochromatic beam narrow and become the ideal light source […]

Electron beam welding of different materials, special materials easier. Of course, the shortcomings of the electron beam is very obvious: the need for high vacuum environment to prevent the electron scattering, […]

The traditional welding methods are difficult to resolve, TIG welding easy to burn through ion stability difference of influence factors and the use of laser welding with good results, has been widely used. Laser […]