Quantum-Leap Program (Q-LEAP) Japan Science and Technology Agency (JST)

Research area: Next Generation Laser
Research Title: Development of Basic Technology for High Repetition Rate Attosecond Light Source Driven by MIR-Free Electron Laser
Project Leader：Ryoichi Hajima（National Institutes for Quantum and Radiological Science and Technology）
Responsible Researcher：Assoc. Prof. Heishun Zen
Period：FY2018-FY2027

A free electron laser (FEL), which is generated from a relativistic electron beam, has wide tunable wavelength in Mid-infrared (MIR) with a high average power and high repetition rate. Therefore, MIR-FEL driven by a superconducting accelerator is suitable for a high-order harmonic generation (HHG) of 1 keV or more with high repetition of MHz. The HHG driven by MIR-FEL can be an alternative technology to the HHG generated by an existing solid-state laser. In this project, key technologies to realize the high repetition rate (>10 MHz) and high photon energy (>1 keV) HHG based attosecond laser will be developed by using an existing MIR-FEL facility in Institute of Advanced Energy.