Author/Authors :
Kato، نويسنده , , R. and Fujimoto، نويسنده , , M. and Igo، نويسنده , , T. and Isaka، نويسنده , , S. and Onishi، نويسنده , , T. and Furukawa، نويسنده , , S. and Okuda، نويسنده , , S. and Suemine، نويسنده , , S. and Isoyama، نويسنده , , G.، نويسنده ,
Abstract :
The nonlinear harmonic generation of self-amplified spontaneous emission (SASE) has been studied in the far-infrared region. Angular distributions of the second harmonic and the third harmonic as well as the fundamental of SASE have been measured. The third harmonic radiation is emitted on the electron beam axis, while the second harmonic radiation is emitted slightly off-axis in the horizontal direction. It seems that there is competition in development of radiation between the fundamental and the other higher harmonics.
Keywords :
High gain , FEL(s) , SASE , Nonlinear harmonic generation , Far-infrared
