Advanced Attosecond Laser Facility project adopts GFRP innovative construction process

2025 In January, the construction of the highly anticipated Advanced Attosecond Laser Facility (AALF) officially started in Dongguan, Guangdong Province, which is constructed by China Construction and Development Corporation (CCDC). As a national major scientific and technological infrastructure, its construction is of great significance, and upon completion, it will be the first Asian and the second global large-scale scientific facility for attosecond lasers.

In order to guarantee the purity of the experimental environment, the project team boldly innovated the traditional construction process by using glass fibre reinforcing rod (GFRP) instead of low-magnetic stainless steel reinforcement. GFRP, which has excellent corrosion resistance and strong permeability to magnetic waves, is a non-magnetic material that can effectively avoid interference with the experimental environment. The use of GFRP ensures the accuracy of experimental data in environmentally demanding projects such as the advanced attosecond laser facility.

The attosecond is the shortest time scale currently mastered by mankind, and attosecond lasers are like "ultrafast cameras" that capture "moving images" of electrons. The facility, with a total layout of 10 beamlines and 22 application terminals, is scheduled to be completed in five years, and will provide strong support for multidisciplinary cutting-edge basic research and industrial applications, in which GFRP is playing a key role in helping this major scientific research project to progress steadily.