Construction And Launch of Advanced Scientific Research Laser Pointer Platform

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The construction of the "hard X-ray free electron laser pointer device" was started. This marks the largest investment so far. The nation's major scientific and technological infrastructure project with the longest construction period. The hard X-ray free electron laser device has entered a period of comprehensive construction. "X-ray The "Science Opportunities and Technical Challenges of Free Electron Lasers" academic forum was held at Shanghai University of Science and Technology. At present, X-ray free electron laser devices have become the necessary high-tech infrastructure for developed countries to compete for the highest point of science and technology in the 21st century. Many people from all over the world Academicians and experts stated at the forum that after the completion of the Shanghai hard X-ray free electron laser device, it will become one of the most efficient and advanced free electron laser user devices in the world. It will be used in physics, chemistry, life sciences, materials science, and energy science. And other multidisciplinaries provide high-resolution imaging, ultra-fast process exploration, advanced structural analysis and other cutting-edge research methods. Form a unique, multidisciplinary advanced scientific research laser pointer platform.

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It is in sync with the existing Shanghai synchrotron light source. Soft X-ray free electron laser pointer device. The world's leading photonics science center composed of ultra-strong and ultra-short laser experimental equipment. Will make China's photonics scientific research from follow-up, parallel to lead. It is understood that the construction site of the hard X-ray free electron laser device is located in the core area of Shanghai Zhangjiang Comprehensive National Science Center. The total length of the device is about 3.1 kilometers. An underground tunnel buried more than 30 meters deep will be constructed. Including 10 superconducting linear accelerator tunnels, undulator tunnels, laser pointers beamline tunnels and 5 working wells.

The green laser pointer will be the preferred laser pointer color in astronomy, because green will be the most obvious laser pointer color. The reason why green is more obvious is that human vision is most sensitive to green light. Another reason will be the result of the illumination of the earth’s atmosphere. Once the atmosphere diffuses and the increased wavelengths are dispersed more than the increased wavelengths, the illumination can be seen from the sky. These are Class 2 lasers with caution labels. Lasers in the range of 1 mW to 5 mW belong to Class 3a and carry a "danger" label. Class 2 laser pointers whose output power does not exceed 1 milliwatt, but laser pointers with a wavelength of 670 nanometers have low apparent brightness and may not be suitable for all purposes.

The power range of the green laser pointer ranges from 1mW to 200mW to determine the difficulty of using energy. The main point to consider when determining the energy level of an astronomical laser is the number of people watching the stars with you. The output power of the laser diode in these pointers is generally in the range of 3-5mW, although some units advertised power greater than 5mW.

2020-01-10 01:34:08

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