Publications [#249383] of Ying Wu

Papers Published
  1. Litvinenko, VN; Park, SH; Pinayev, IV; Wu, Y; Lumpkin, A; Yang, B, Fourier limited micro-pulses in the OK-4/Duke storage ring FEL, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 475 no. 1-3 (2001), pp. 234-239 [doi] .

    The Super-modes are Fourier limited FEL micro-pulses predicted by Dattoli and Renieri in 1980. The OK-4 FEL at Duke, operating in the wavelength range from 193.7nm to 730nm, was the first to observe the Super-modes in a storage ring FEL in 1996. Since 1996, the up-graded diagnostics and improved control of the RF frequency allowed generation of Super-modes on a regular basis and systematic study of them. The Gaussian FEL micro-pulses with 1.3ps RMS duration and Fourier limited RMS linewidth were generated in 1998-1999. In this paper we present the results of our studies and the comparison with theoretical predictions. We also present practical criteria for operating SR FELs with Super-modes. © 2001 Elsevier Science B.V. All rights reserved.