The 50th anniversary commemorative conference and academic conference of the birth of laser jointly sponsored by the Chinese Academy of Sciences, the Chinese Academy of Engineering, and the Chinese Academy of Engineering Physics were held in Mianyang.

　　 Zhou Ji, President of the Chinese Academy of Engineering, Mianheng Changjiang, Vice President of the Chinese Academy of Sciences, Feng Changgen, Secretary of the Secretariat of the Chinese Association for Science and Technology, Zhao Xiangeng, Dean of the Chinese Academy of Engineering Physics, and Du Xiangwan, Academician of the Chinese Academy of Engineering, attended the meeting and delivered speeches. Experts and scholars from major domestic research institutes and universities in the field of laser technology gathered together to review the important achievements shown in the progress of laser technology in the past 50 years, and look forward to the frontier development trend in the future. Zhou Ji, Dean of the Chinese Academy of Engineering, speaks at the commemorative meeting

　　 Zhou Ji pointed out that laser is one of the most important scientific and technological achievements of the 20th century, and another major invention of mankind after atomic energy, computers and semiconductors. In the past 50 years, the rapid development of laser has not only enabled the essential innovation and development of ancient optical science and optical technology, but also has driven the technological progress in many fields and the emergence of emerging industries with the widespread application of laser technology.

　　 Jiang Mianheng emphasized in his speech the 50-year history of laser research of the Chinese Academy of Sciences since my country’s first ruby laser was successfully developed in the Changchun Institute of Optics and Fine Mechanics, Chinese Academy of Sciences in September 1961. Jiang Mianheng emphasized that laser is a product of continuous innovation from scientific ideas to science and technology, and has made great contributions to social and economic development, and has become inseparable from human life. The Chinese Academy of Sciences has deployed "laser science and technology" as a key technology field in the innovation 2050 technology roadmap and the innovation 2020 plan.

Zhao Xiangeng introduced the technological innovation and scientific research management experience of the China Academy of Engineering Physics in fusion-level high-power laser driver research and ultra-short and super-strong laser technology research, and made major breakthroughs, and proposed to strengthen its advantages in the laser field. The strong alliance of units creates a national scientific research team with competitive advantages.

In the conference report entitled "A Few Enlightenments from Lasers in Fifty Years", Du Xiangwan summarized four enlightenments brought to the scientific and technological circles from the development of lasers: First, science knows no borders, and scientific laws that reflect objective truths will eventually It has become the consensus of the scientific community of all countries and has become "similar to what you have seen"; second, new concepts, new ideas and new technologies are the strategic commanding heights; third, accomplishing a matter of great significance to society requires basic research and engineering technology Fourth, demand traction and technology promotion can become a positive feedback chain. When talking about the development of laser technology in the future, Du Xiangwan pointed out that to make lasers more and more popular, through cross-applications in the fields of physics, chemistry, materials, biology, agriculture, and information technology, the development of lasers should be increased to Update higher steps.

　　 After the conference, Chen Jia'er, academician of the Chinese Academy of Sciences, gave the first invited report, introducing "the current situation and development trend of free electron lasers", which kicked off the two-day academic conference on the 50th anniversary of the birth of lasers.