Author/Authors :
Lumpkin، نويسنده , , A.H and Biedron، نويسنده , , S.G. and Dejus، نويسنده , , R.J and Berg، نويسنده , , W.J and Borland، نويسنده , , M and Chae، نويسنده , , Y.C and Erdmann، نويسنده , , M and Huang، نويسنده , , Z and Kim، نويسنده , , K.-J and Li، نويسنده , , Y and Lewellen، نويسنده , , J.W. and Milton، نويسنده , , S.V. and Moog، نويسنده , , E and Sajaev، نويسنده , , V and Yang، نويسنده , , B.X، نويسنده ,
Abstract :
The nonlinear generation of harmonics in a self-amplified spontaneous emission free-electron laser continues to be of interest. Complementary to such studies is the search for information on the electron beam microbunching harmonic components, which are revealed by coherent optical transition radiation experiments. An initial z-dependent set of data has been obtained with the fundamental at 530 nm and the second harmonic at 265 nm. The latter data were collected after every other undulator in a nine-undulator string. These results are compared to estimates based on GINGER and an analytical model for nonlinear harmonic generation.
Keywords :
Microbunching , Coherent optical transition radiation , Harmonics , SASE FEL
