Demonstration of the echo-enabled harmonic generation technique for short-wavelength seeded free electron lasers.
Phys Rev Lett
; 105(11): 114801, 2010 Sep 10.
Article
en En
| MEDLINE
| ID: mdl-20867575
ABSTRACT
We report the first experimental demonstration of the echo-enabled harmonic generation technique, which holds great promise for generation of high-power, fully coherent short-wavelength radiation. In this experiment, coherent radiation at the 3rd and 4th harmonics of the second seed laser is generated from the so-called beam echo effect. The experiment confirms the physics behind this technique and paves the way for applying the echo-enabled harmonic generation technique for seeded x-ray free electron lasers.