The new generation of ultra-strong and ultra-short laser comprehensive experimental device project passed the acceptance

A new generation of ultra-strong and ultra-short laser comprehensive experimental device to explore and solve major scientific and technological problems in the acceleration of phase space ultra-high density and high-energy electronic lasers. ) Strategic high technology, to develop high-intensity attosecond coherent X-ray science and new fields of high-intensity physics in the new mid-infrared band are scientific goals. This device will be based on the principle verification of a desktop XFEL output based on a laser wakefield accelerator. The device consists of a high-performance repetitive frequency terawatt-level ultra-strong ultra-short laser system, a mid-infrared new-band tunable ultra-strong ultra-short laser system, laser wake-field electron acceleration and a desktop X-ray band free electron laser (XFEL) system , High-harmonic XUV coherent light source system and other four systems.

On December 23, the project technical test expert group, financial acceptance expert group, and file acceptance expert group respectively conducted field test, financial acceptance, and file acceptance of project acceptance technical indicators. The project acceptance meeting was held on the 24th. The acceptance expert group consists of 19 technical, financial, and archival experts. Zhang Jie, an academician of the Chinese Academy of Sciences, serves as the team leader, and Yang Xueming, an academician of the Chinese Academy of Sciences, serves as the deputy team leader. Xie Xincheng, deputy director of the National Natural Science Foundation of China, Zheng Xiaonian, director of the Bureau of Conditional Guarantees and Finance of the Chinese Academy of Sciences, and Leng Yuxin, deputy director of the Shanghai Institute of Optical Machinery, attended the acceptance meeting. The meeting was co-chaired by Guo Xuan and Zhang Jie, executive deputy directors of the Department of Mathematical and Physical Sciences of the Fund Committee. The acceptance expert group listened to the project leader Li Ruxin's project completion report, project supervision group supervision report, technical test expert group test report, financial acceptance expert group financial acceptance report, file review expert group file review report, and inspected the development on site equipment.

The acceptance expert group voted and unanimously agreed that the project passed acceptance. The project acceptance expert group stated that the project team had fully completed the project's development tasks and reached the expected targets. Observed the non-linear amplification effect of free electron laser radiation based on laser acceleration for the first time, and achieved international leading level in the research of laser wake electron acceleration, mid-infrared new wave ultra-strong ultra-short laser, and laser-driven higher harmonic generation Results. The acceptance expert group proposed to implement the platform's operating mode and funding guarantee as soon as possible, establish a stable technical support team, realize open sharing, and provide good user services.

Shao Jianda, director of the Shanghai Institute of Optical Machinery, Chen Weibiao, party secretary and deputy director, and Li Yan, deputy secretary of the party committee, participated in the project test and acceptance meeting on behalf of the project undertaking unit.