摘要
For a long pulse free-electron laser(FEL)in the low gain regime,an approximate expression is given to describe the optical field gain from the small signal to the weak saturation.The result is shown to agree with those from a 1-D computer simulation.
作者
贾启卡
JIA Qika(Synchrotron Radiation Lab.,University of Science and Technology of China,Hefei 230026)
