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.
Hao, H., et al. “Design of a soft orbit bump for FEL mirror protection at duke FEL/HIGS facility.” Ipac 2013: Proceedings of the 4th International Particle Accelerator Conference, Dec. 2013, pp. 2006–08.
Wu, Y. K. “Accelerator physics and light source research program at duke university.” Ipac 2013: Proceedings of the 4th International Particle Accelerator Conference, Dec. 2013, pp. 264–66.
Xu, W., et al. “A betatron tune measurement system based on bunch-by-bunch transverse feedback at the Duke storage ring.” Chinese Physics C, vol. 37, no. 7, July 2013. Scopus, doi:10.1088/1674-1137/37/7/077006. Full Text
Laskaris, G., et al. “First measurements of spin-dependent double-differential cross sections and the Gerasimov-Drell-Hearn Integrand from 3He(γ,n)pp at incident photon energies of 12.8 and 14.7 MeV.” Physical Review Letters, vol. 110, no. 20, May 2013, p. 202501. Epmc, doi:10.1103/physrevlett.110.202501. Full Text
Zimmerman, W. R., et al. “Unambiguous identification of the second 2+ state in 12C and the structure of the Hoyle state.” Physical Review Letters, vol. 110, no. 15, Apr. 2013, p. 152502. Epmc, doi:10.1103/physrevlett.110.152502. Full Text
Xu, W., et al. “Design and optimization of a longitudinal feedback kicker cavity for the HLS-II storage ring.” Chinese Physics C, vol. 37, no. 3, Mar. 2013. Scopus, doi:10.1088/1674-1137/37/3/037003. Full Text
Omer, M., et al. “Active interrogation of nuclear materials using LaBr3: Ce detectors.” Energy Procedia, vol. 34, Jan. 2013, pp. 50–56. Scopus, doi:10.1016/j.egypro.2013.06.732. Full Text
Omer, M., et al. “Detection of photon-induced excitations in 235U with LaBr 3:Ce scintillating detectors.” Ieee Nuclear Science Symposium Conference Record, Dec. 2012, pp. 55–58. Scopus, doi:10.1109/NSSMIC.2012.6551059. Full Text
Xu, W., et al. “Electron beam diagnostics based on transverse feedback system at duke storage ring.” Ipac 2012 International Particle Accelerator Conference 2012, Dec. 2012, pp. 849–51.
Mikhailov, S. F., et al. “Soft orbit bump for duke storage ring VUV FEL operation.” Ipac 2012 International Particle Accelerator Conference 2012, Dec. 2012, pp. 1774–76.
An FEL-Driven High-intensity Energy-Tunable Compton Gamma-ray Source. an invited seminar talk on the “Science & Technology Innovation Forum". Institute of High Energy Physics, Academia Sinica. June 3, 2009