Author: Zhao, Z.T.
Paper Title Page
MOOBNO03
 First Lasing of an Echo-enabled Harmonic Generation Free-electron Laser  
 
  • Z.T. Zhao
    SINAP, Shanghai, People's Republic of China
  
  Free-electron lasers have been successfully operated with ultra- high brightness and excellent transverse coherence at X-ray wavelengths 1–4 . One of the next goals for further improvements is full coherence 5,6 . An obvious approach is to seed the free- electron laser interaction using a conventional source that has good temporal coherence 7–12 . Here, we show the first lasing of a free-electron laser with an echo-enabled harmonic generation scheme 11 , which shows great promise for producing coherent lasing at short wavelengths, even in the X-ray regime.  
slides icon Slides MOOBNO03 [14.478 MB]  
 
THOANO04
 Experimental Studies of Echo-enabled HG FEL  
 
  • Z.T. Zhao
    SINAP, Shanghai, People's Republic of China
  • D. Xiang
    SLAC, Menlo Park, California, USA
  
  After echo-enabled HG FEL was studied theoretically and numerically, several experiments have been done to verify it. An overview of the experiments over the world and new understanding of it will be given in this talk.  
slides icon Slides THOANO04 [18.207 MB]  
 
THOCNO01
 The Perspective and Application of Extreme UV FEL at Dalian  
 
  • W.Q. Zhang, D.X. Dai, Q. Guo, G.R. Wu, C.L. Xiao, X.M. Yang
    DICP, Dalian, People's Republic of China
  • D. Wang, Z.T. Zhao
    SINAP, Shanghai, People's Republic of China
  
  Funding: Supported by the National Science Foundation of China. The contract No. is 21127902
Free electron laser, as the fourth generation of light source, has been developed for decades, the higher power, ultrafast pulse in femtosecond scale, better spectral resolution were achieved. It has been approved a powerful tool in the scientific researches, perfect complement of tabletop laser system and synchrotron light source. FEL in EUV range, especially around 100nm, is very helpful to investigate the chemical reactions in the basic energy research, because the small molecule or radical, related to combustion, can be ionized and detected efficiently and sensitively by intense EUV beam with one photon. A new project to generate EUV beam from 50 to 150 nm at Dalian, Dalian Coherent Light Source (DLCS), was advocated by Dalian Institute of Chemical Physics & Shanghai Institute of Applied Physics. The coherent optical beam with more than 100uJ per pulse will be achieved with high gain harmonic generation1 and well controlled in femtosecond time scale2. User experimental stations in the studies of molecular beams and surface dynamics will also be built at the same time. A conceptual design of DLCS and related research plans will be present at the conference.
1.Yu L, Babzien M, Ben-Zvi I, DiMauro L, Doyuran A, et al. Science 289, 932(2000)
2.Conceptual Design Report of “An Extreme-UV Coherent Light Source at Dalian”(2012) 		 
slides icon Slides THOCNO01 [5.374 MB]