Major breakthroughs have been made in the research and development of super and short laser experimental devices

According to introducing, super ultrashort laser can create unprecedented strong electromagnetic field in the laboratory, high energy density, and extreme physical conditions, super fast time scale comprehensive in accelerator table, ultrafast chemical, the second science, material science, laser fusion, in the fields of nuclear physics and nuclear medicine and laboratory astrophysics has important application value.

At present, many countries in the world have invested huge sums of money to carry out the research and development of the 10 pat watt (1 pat watt =1 quadrillion watt) class large super super short laser device, the competition is fierce. For example, the eu-backed extreme light facility (ELI) project is simultaneously building several 10-petawatt laser user devices, France and the UK are also developing their own 10-petawatt laser devices, and the us, Russia and Japan have proposed research ideas for the 100-petawatt class super and ultra-short lasaer pointer devices.

The researchers solved the key scientific and technical problems such as large-caliber high-gain laser amplifier, high-performance laser pump source, wide-band high-order dispersion precise control and gain narrowing suppression, and realized the wide-band laser amplification output with energy level above 300 joules for the first time in the world.

It is worth mentioning that the titanium gem crystal diameter of 10 petawatt laser main amplifier is 235 mm, which was developed by Shanghai optical machine. This is the first laser crystal with a diameter of more than 200 mm successfully developed and obtained in China. It is also the largest laser amplification crystal known in the world.

It is understood that this is the Shanghai super super short laser experimental device in August 2016 to achieve 5 paowa international leading results after another major progress. The installation is scheduled to be fully completed and open to users by the end of 2018.