Professor of Physics
Prof. Wu is interested in nonlinear dynamics of charged particle beams, coherent radiation sources, and the development of novel accelerators and light sources. One of his research focuses is to study the charged particle nonlinear dynamics using the modern techniques such as Lie Algebra, Differential Algebra, and Frequency Analysis. This direction of research will significantly further the understanding of the nonlinear phenomena in light source storage rings and collider rings, improve their performance, and provide guidance for developing next generation storage rings. The second area of research is to study and develop coherent radiation sources such as broad-band far infrared radiation from dipole magnets and coherent mm-wave radiation from a free-electron-laser (FEL). With this direction of research, he hopes to study the beam stability issues, in particular, the single bunch instabilities in the storage ring, develop diagnostics to monitor and improve the stability of the light source beams, and eventually develop novel means to overcome instabilities. These areas of research will provide foundations for developing a femto-second hard x-ray Compton back scattering radiation source driven by a mm-wave FEL - a next generation light source.
Kurkin, G., et al. “A new timing system for the Duke booster and storage ring.” Proceedings of the Ieee Particle Accelerator Conference, vol. 2005, Dec. 2005, pp. 3159–60. Scopus, doi:10.1109/PAC.2005.1591398. Full Text
Wu, Y. K., et al. “First lasingand initial operation ofa circularly polarized optical klystron ok-5 felandavariably polarized distributed optical klystron DOK-1 FEL at DUKE.” Proceedings of the 27th International Free Electron Laser Conference, Fel 2005, Dec. 2005, pp. 407–10.
Tornow, W., et al. “Photon analyzing power for the three-body breakup of 3He at Eγ = 15.0 MeV.” Aip Conference Proceedings, vol. 768, May 2005, pp. 138–40. Scopus, doi:10.1063/1.1932890. Full Text
Feng, J., et al. “An x-ray photoemission electron microscope using an electron mirror aberration corrector for the study of complex materials.” Journal of Physics Condensed Matter, vol. 17, no. 16, Apr. 2005. Scopus, doi:10.1088/0953-8984/17/16/005. Full Text
Wu, Y. K., et al. “Anomalous hollow electron beams in a storage ring.” Physical Review Letters, vol. 94, no. 13, Apr. 2005, p. 134802. Epmc, doi:10.1103/physrevlett.94.134802. Full Text
Schmid, P., et al. “Correction and alignment strategies for the beam separator of the photoemission electron microscope 3 (PEEM3).” Review of Scientific Instruments, vol. 76, no. 2, Jan. 2005. Scopus, doi:10.1063/1.1841871. Full Text
Savran, D., et al. “Parity assignments in 172,174Yb using polarized photons and the K quantum number in rare earth nuclei.” Physical Review C Nuclear Physics, vol. 71, no. 3, Jan. 2005. Scopus, doi:10.1103/PhysRevC.71.034304. Full Text Open Access Copy
Wu, Y. K., et al. “Design and analysis of beam separator magnets for third generation aberration compensated PEEMs.” Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 519, no. 1–2, Feb. 2004, pp. 230–41. Scopus, doi:10.1016/j.nima.2003.11.160. Full Text
Ahmed, M. W., et al. “Background reduction in FEL-generated γ-ray beam experiments using giant high-peak power pulses.” Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 516, no. 2–3, Jan. 2004, pp. 440–44. Scopus, doi:10.1016/j.nima.2003.08.166. Full Text
Fransen, C., et al. “Parity assignments to strong dipole excitations of92Zr and 96Mo 044317.” Physical Review C Nuclear Physics, vol. 70, no. 4, Jan. 2004. Scopus, doi:10.1103/PhysRevC.70.044317. Full Text