Scientists at Shanghai Institute of Applied Physics (SINAP), Chinese Academy of Sciences demonstrated a novel principle of seeded free electron lasers, Echo-Enabled Harmonic Generation (EEHG) on Shanghai Deep UV Free Electron Laser (SDUV-FEL) facility. The result was published on Nature Photonics, Vol.6, No.6, 360-363, 2012.
The recent work done by the SINAP FEL team shows the first lasing of a free electron laser with the echo-enabled harmonic generation scheme, which is very promising for producing coherent laser at short wavelength down to the x-ray regime.
Source: CAS