Author/Authors :
Yu، نويسنده , , L.H and Doyuran، نويسنده , , A and DiMauro، نويسنده , , L and Graves، نويسنده , , Janeal W.S. and Johnson، نويسنده , , E.D and Heese، نويسنده , , R and Krinsky، نويسنده , , S and Loos، نويسنده , , H and Murphy، نويسنده , , J.B. and Rakowsky، نويسنده , , G and Rose، نويسنده , , J and Shaftan، نويسنده , , T and Sheehy، نويسنده , , B and Skaritka، نويسنده , , J and Wang، نويسنده , , X.J and Wu، نويسنده , , Z، نويسنده ,
Abstract :
We report the first experimental results on a high-gain harmonic-generation (HGHG) free-electron laser (FEL) operating in the ultraviolet. An 800 nm seed from a Ti-Sapphire laser has been used to produce saturated amplified output at the 266 nm third-harmonic. The results confirm the advantages of the HGHG FEL: stable central wavelength, narrow bandwidth and small pulse energy fluctuation. The harmonic output at 88 nm, which accompanies the 266 nm radiation, has been used in an ion pair imaging experiment in chemistry.
