Femtosecond and sub-femtosecond x-ray pulses from a SASE-based free-electron laser

  title={Femtosecond and sub-femtosecond x-ray pulses from a SASE-based free-electron laser},
  author={Paul Emma and K. L. F. Bane and Max Cornacchia and Zhirong Huang and Holger Schlarb and Gennady Stupakov and Dieter Walz},
We propose a novel method to generate femtosecond and sub-femtosecond photon pulses in a freeelectron laser by selectively spoiling the transverse emittance of the electron beam. Its merits are simplicity and ease of implementation. When the system is applied to the Linac Coherent Light Source, it can provide x-ray pulses the order of 1 femtosecond in duration containing about 1010 transversely coherent photons. †Emma@SLAC.Stanford.edu ‡On leave from Deutches Elektronen Synchrotron (DESY… CONTINUE READING

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