"5 Pa watts" light China's strong laser cutting-edge road
The Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai University of Science and Technology super strong laser light source joint laboratory came good news, where the research team in Zhangjiang comprehensive National Science Center super short laser experimental device (SULF), the successful realization of a 5-watt laser pulse Output, which is the highest output instantaneous power in the world successfully, marking our country has reached the international advanced level in this field. SULF's next goal will be to take the lead in the world to achieve 10-watt laser output. The instantaneous power is 2000 times the average power of the global grid 1 watt tile equivalent to the global power grid average power 500 times. A laser with a peak wattage of 1 pw produces the same amount of light as focusing all the solar energy shining onto the Earth to one strand of hair, the highest light source known to man. Although super short, but in fact very safe. "We achieved 5 watts of laser output, in fact, less than 200 joules of energy per laser pulse," said a scientist at the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, "which is equivalent to just 0.1 seconds of high fire for an ordinary microwave oven." It is reported that scientists output super-short laser through the device, the peak power of up to 5.3 watts tile, is currently known to the highest peak pulse laser power, the instantaneous burst of power equivalent to the average power grid in the world more than 2000 Times, corresponding to the extreme physical conditions are usually only generated within the star or black hole edge. Enter the first batch of Shanghai Kechuang major projects With the joint support of the National Development and Reform Commission and Shanghai Municipality, the development of a super-short ultra-short laser experiment device based on a 10-watt laser device has been incorporated into Shanghai's establishment of a global science and innovation center to build a world-class science and technology foundation The first batch of major projects of the facility cluster will also be one of the core platforms of the Zhangjiang Comprehensive National Science Center in Shanghai. The development of ultra-short and ultra-short laser has become one of the major frontiers in the international competition in science and technology. It is of great social significance to build SULF, a large scientific facility that is expected to reach the international advanced level, in line with the major national needs and the construction of the Shanghai Science and Innovation Center. Zhu Zhiyuan, president of Chinese Academy of Sciences Shanghai Branch and party secretary of Shanghai University of Science and Technology, said that in the next few years, the ultra-short ultra-short laser experiment set-up at Shanghai Zhangjiang Comprehensive National Science Center will work together with Shanghai Light Source and Soft X-ray Free Electron Laser to form Zhangjiang Super Light Source "Has become a mainstay of illuminating the frontiers of science and exploring the technological heights and also provided strong support for Shanghai to build a science and technology center with global influence. Chinese Academy of Sciences team stand out in the international competition Because it can produce extreme conditions, so the application is also very extensive. Scientists can use this special laser to develop electron accelerators and ultra-fast X-ray sources; they can make antimatter and probe dark matter to study astrophysics and cosmic origins. Many countries in the world invested heavily to develop ultra-short ultra-short laser light source, and relying on its cutting-edge technology innovation platform, the international competition in this area is very fierce. In 2012, the EU invested 850 million euros and plans to build 10-watt laser user devices by 2018. France and Britain are also developing their own 10-watt laser devices. The United States, Russia, Japan and other countries have proposed 100-watt watt-class super- Research and design of strong ultrashort laser device. In 2013, the team of Shanghai Institute of Optics and Machinery took the lead in developing the successful 2-watt laser amplification system in the world, being the highest peak power in the world at that time. Late last year, the team successfully developed 5-watt laser amplification technology verification system. "When the power is high to a certain extent, it is quite difficult to raise even a little bit." The key researcher of the device, Liang Xiaoyan, a researcher at Shanghai Institute of Optics and Optoelectronics, said the breakthrough lies in how to transfer higher energy to the output ultra-short laser pulse . It is reported that the laser device based on large diameter titanium crystal chirped pulse amplification (CPA) technology route. The project team has innovated the active parasitic oscillation suppression technology of large-caliber high-gain CPA amplifier and the precision control compensation technology of laser spectral dispersion. The world's first large-band (70 nm) laser amplification output with an energy level above 200 Joules has been developed. The nanosecond-level chirp pulses output by the main amplifier are compressed to sub-30 femtosecond pulses by a pulse compressor with a large aperture grating. The peak power of the compressed laser pulses is up to 5.3 watts, which is the highest in the world Laser pulse peak power. SULF continue to upgrade, the output of the various wavelengths of radiation pulse, the time width from the femtosecond level, up to the second (10 of the 18th party seconds) level, or even seconds (10 negative 21 seconds) Level, will open up a new wave of electronics and information technology, ultra-fast light nuclear physics research new disciplines. This significant progress has laid a solid technical foundation for the development of the 10-watt laser pulse output of the SULF project. It is reported that, SULF project is expected to be the first to build, including extreme conditions of materials science research platform, ultrafast subatomic physics research platform and ultrafast chemistry and macromolecule dynamics research platform, three user terminals, serving the physical sciences and life sciences the study. For domestic and foreign universities, research institutions and enterprises fully open to form a multidisciplinary research platform. Liu Zhi, associate dean of Shanghai University of Science and Technology Institute of Material Science and Technology, said that the function of the device can play a role in how much it is related to the user. He hopes that in the future more scientists will make first-class scientific research through this platform to discover such super light sources Multi-purpose. Jack Stand,Jack And Jack Stands,Safe Jack Stands,Automotive Jack Stands WUQIANG HONGMA TOOLS MANUFACTURE CO., LTD , https://www.hmfarmjack.com