Author: Gu, X.W.
Paper Title Page
THP174 A Single Cavity Echo Scheme 2438
 
  • P.R. Gandhi, J.S. Wurtele
    UCB, Berkeley, California, USA
  • X.W. Gu
    UESTC, Chengdu, Sichuan, People's Republic of China
  • G. Penn, M.W. Reinsch
    LBNL, Berkeley, California, USA
 
  Funding: This work was supported by the DIrector, Office of Science, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231.
The possibility of implementing echo-enabled harmonic generation* (EEHG) within a single optical resonance cavity is explored both analytically and with numerical simulations. Two modulators of the same frequency are used so that the cavity radiation replaces the two seed lasers of conventional EEHG. Such a scheme has potential** to produce tunable radiation as in EEHG, but with the high repetition rate, longitudinal coherence, and narrow spectral bandwidth of an oscillator. These benefits, however, come with the complication that the beam must generate the radiation that modulates it. Analysis and GINGER simulations are presented for a specific example that takes advantage of robust multilayer mirror performance at 13.4 nm to produce radiation near or possibly even below 1 nm.
* G. Stupakov, Phys. Rev. Lett. 102, 074801 (2009).
** J. Wurtele et al., Proc. of the 2010 FEL Conference, TUOC12.