A Review of High-Gain Free-Electron Laser Theory
Round 1
Reviewer 1 Report
The report is as attached.
Comments for author File: 
Comments.pdf
Author Response
Please see the attachement
Author Response File: Author Response.pdf
Reviewer 2 Report
This manuscript is well-written. It focused on the approach and the contributions from the group led by R. Bonifacio, a pioneer in high-gain FEL theory that made many seminal contributions to the field. The review is also expanded to include thee-dimensional effects that many others contributed.
The theory of high-gain FEL is very mature these days with a couple of excellent textbooks that cover more extensively than this short review. Therefore I recommend the authors of this manuscript to cite at least two more references on the subject:
P. Schmuser et al., Free-Electron Laser in the UV and X-ray regime, Springer, 2014.
K.-J. Kim, Z. Huang and R. Lindberg, Synchrotron Radiation and Free-Electron Lasers, Cambridge, 2017.
Author Response
We thank the Referee for his positive comments. We added several new references, included the ones mentioned by the Referee (ref.[3,4] in the revised version).
