Researchers at the University of Strathclyde in the UK have successfully developed the world's highest gain high power laser amplifier. They experimented with the central laser Vulcan laser system, which can output 150 J pulses. In both experiments, the researchers worked closely with the CLF staff to adjust the Vulcan so that two different colored laser beams could exchange energy in the plasma with an experimentally measured gain factor of 180 cm -1, which is currently 100 times higher power laser system based on solid media amplifier. Relevant research results published in the "Scientific Reports" magazine. Vulcan laser device target area Dino Jaroszynski, professor of physics at the University of Strathclyde, led the study, noting that Raman amplification in plasma is a very attractive concept that combines Nobel Prize winner CV Raman's Opinion and plasma, optics and laser physics are well integrated. A relatively long high-energy laser pulse collides with a short, very low-energy pulse in the plasma. There is a beat wave at the collision, as is the case when two waves collide. The light pressure of the shock wave drives the plasma to form a regular or trapezoidal shape and the multilayered ladder, as a highly reflective, time-varying lens, reflects the energy of the high-energy pulse into the low-energy pulse, amplifying the low- It is compressed into ultra-short time light pulses. "Our experimental results are very important because these results demonstrate the flexibility of the plasma medium as a very high gain amplifier medium and the experimental results also show that the efficiency of the amplifier can be large, at least up to 10%, which is unprecedented and There is still a big improvement possible. Of course, the current experimental results also show that it is still necessary to further its research, with a view to achieving single-stage high-gain and high-efficiency amplifier module. "For example, one of the challenges that we are still facing is how to deal with the amplification of" noise "caused by stochastic plasma fluctuations, which is exacerbated by the extremely high gain, which leads to energy loss.Related studies are underway, I believe in the next experiment can be a good solution to these problems. " Gregory Vieux, PhD, who led the research team, notes that plasma is a completely decomposed medium so it has no damage threshold and therefore can amplify short laser pulses without being pulsed wide and then compressed. Another advantage is that it is theoretically possible to achieve further compression during amplification, which may pave the way for the development of the next generation of laser systems that will be able to output both super-strong and ultra-short pulses at the cost of There is a small part of the laser. "However, we can not yet be completely certain that the solution relies on controlling the Raman instability and its growth factor is very large. Small fluctuations in the plasma can cause large instabilities," said Gregory Vieux. Plywood production line is one of the most common machine in woodworking field . plywood production machine includes veneer peeling machines, veneer peeling production line , Veneer Dryer , veneer slicing machine, Veneer Glue Spreader, plywood veneer hot press machine , plywood veneer cold press machine ,sanding machine and etc. plywood production machines are more and more popular nowadays! Plywood Production,Plywood Production Line,Plywood Production Machines,Plywood Veneer Production Line Shandong Shine Machinery Co.,Ltd , https://www.shinewoodmachine.com