Chirped pulse amplification of HGHG-FEL at DUV-FEL facility at BNL

Adnan Doyuran, Louis DiMauro, W. Graves, Richard Heese, Erik D. Johnson, Sam Krinsky, Henrik Loos, James B. Murphy, George Rakowsky, James Rose, Timur Shaftan, Brian Sheehy, Yuzhen Shen, John Skaritka, Xijie Wang, Zilu Wu, Li Hua Yu

Research output: Contribution to journalConference articlepeer-review

12 Scopus citations


The DUV-FEL facility has been in operation in the High Gain Harmonic Generation (HGHG) mode producing a 266-nm output from 177-MeV electrons for 1 year. In this paper, we present preliminary results of the Chirped Pulse Amplification (CPA) of the HGHG radiation. In the normal HGHG process, a 1-ps electron beam is seeded by a chirped 9ps long, 800-nm Ti:Sapphire laser. The electron beam sees only a narrow fraction of the seed laser bandwidth. However, in the CPA case, the seed laser pulse length is reduced to 1ps, and the electron beam sees the full bandwidth. We introduce an energy chirp on the electron beam to match the chirp of the seed pulse, enabling the resonant condition for the whole beam. We present measurements of the spectrum bandwidth for various chirp conditions.

Original languageEnglish (US)
Pages (from-to)467-470
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1-2
StatePublished - Aug 1 2004
Externally publishedYes
EventProceedings of the 25th International Free Electron Laser - Tsukuba,Ibaraki, Japan
Duration: Sep 8 2003Sep 12 2003


  • Accelerator
  • CPA
  • FEL
  • HGHG
  • High gain
  • Seed laser

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


Dive into the research topics of 'Chirped pulse amplification of HGHG-FEL at DUV-FEL facility at BNL'. Together they form a unique fingerprint.

Cite this