Laser-Seeded Free-Electron Lasers at the NSLS

The National Synchrotron Light Source (NSLS) has a long tradition of research and development in accelerator physics and light source technologies. Over the past two decades, the NSLS has made many pioneering contributions to the development of storage-ring-based light sources, such as the Chasman-Green lattice, global orbit feedback systems, and in-vacuum insertion devices. Even from the earliest days of the NSLS, the staff also had started to explore the potential of free-electron-laser (FEL)-based light sources, leading to some seminal work on the theory of self amplified spontaneous emission (SASE) FELs [1 Bonifacio, R., Pellegrini, C. and Narducci, L. 1984. Optics Comm., : 373 [Google Scholar],2 Wang, J.M. and Yu, L.H. 1986. NIM A, 250: 484 [Google Scholar]].