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.
Popov, V., et al. “Cold cathode thyratron based high-voltage kicker generators at the duke accelerators: Six year experience.” Ipac 2012 International Particle Accelerator Conference 2012, Dec. 2012, pp. 3698–700.
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
Sun, C., and Y. K. Wu. “Theoretical and simulation studies of characteristics of a Compton light source.” Physical Review Special Topics Accelerators and Beams, vol. 14, no. 4, Apr. 2011. Scopus, doi:10.1103/PhysRevSTAB.14.044701. Full Text
Wu, W. Z., et al. “Development of a bunch-by-bunch longitudinal feedback system with a wide dynamic range for the HIGS facility.” Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 632, no. 1, Elsevier BV, Mar. 2011, pp. 32–42. Crossref, doi:10.1016/j.nima.2010.12.077. Full Text
Quarati, F. G. A., et al. “High energy gamma-ray spectroscopy with LaBr3 scintillation detectors.” Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 629, no. 1, Feb. 2011, pp. 157–69. Scopus, doi:10.1016/j.nima.2010.11.035. Full Text
Sun, C., and Y. K. Wu. “A semi-analytical algorithm for modelling Compton gamma-ray beams.” Ipac 2010 1st International Particle Accelerator Conference, Dec. 2010, pp. 265–67.
Wu, Y. K. “Accelerator physics research and light source development at Duke University.” Ipac 2010 1st International Particle Accelerator Conference, Dec. 2010, pp. 2648–50.
Sun, C., et al. “Electron beam polarization measurement using touschek lifetime technique.” Ipac 2010 1st International Particle Accelerator Conference, Dec. 2010, pp. 262–64.
Mikhailov, S. F., et al. “Study of FEL mirror degradation at the DUKE FEL and higs facility.” Ipac 2010 1st International Particle Accelerator Conference, Dec. 2010, pp. 2275–77.
Jia, B., et al. “Electron beam energy spread measurements using optical klystron radiation.” Physical Review Special Topics Accelerators and Beams, vol. 13, no. 8, Aug. 2010. Scopus, doi:10.1103/PhysRevSTAB.13.080702. Full Text Open Access Copy
First Demonstration of High Gain Lasing and Polarization Switch with a Distributed Optical Klystron FEL at Duke University. An invited presentation at Center for Advanced Studies of Accelerators (CASA). Jefferson Lab. August 15, 2006
First Lasing and Initial Operation of a Circularly Polarized Optical Klystron OK-5 FEL and a Variably Polarized Distributed Optical Klystron DOK-1 FEL. 2005 Free Electron Laser Conference. Stanford University. August 24, 2005
First Lasing: A Circularly Polarized Optical Klystron OK-5 FEL and A Variably Polarized Distributed Optical Klystron DOK-1 FEL at Duke. 2005 Free Electron Laser Conference. Stanford University. August 22, 2005