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.
Bernstein, AM, Ahmed, MW, Stave, S, Wu, YK, and Weller, HR. "Chiral dynamics in photopion physics: Theory, experiment, and future studies at the HIγS facility." Annual Review of Nuclear and Particle Science 59 (2009): 115-144. Full Text
Pietralla, N, Li, TC, Fritzsche, M, Ahmed, MW, Ahn, T, Costin, A, Enders, J, Li, J, Müller, S, Neumann-Cosel, PV, Pinayev, IV, Ponomarev, VY, Savran, D, Tonchev, AP, Tornow, W, Weller, HR, Werner, V, Wu, YK, and Zilges, A. "Competition between excited core states and 1 ℏ ω single-particle excitations at comparable energies in 207Pb from photon scattering." Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 681.2 (2009): 134-138. Full Text
Blackston, MA, Ahmed, MW, Perdue, BA, Welller, HR, Bewer, B, Pywell, RE, Wurtz, WA, Igarashi, R, Kucuker, S, Norum, B, Wang, K, Li, J, Mikhailov, SF, Popov, VG, Wu, YK, and Sawatzky, BD. "Erratum: First observation of the splittings of the E1 p-wave amplitudes in low energy deuteron photodisintegration and its implications for the Gerasimov-Drell-Hearn sum rule integrand (Physical Review C (2008) 78 (034003))." Physical Review C - Nuclear Physics 78.6 (2008). Full Text
Blackston, MA, Ahmed, MA, Perdue, BA, Weller, HR, Bewer, B, Pywell, RE, Wurtz, WA, Igarashi, R, Kucuker, S, Norum, B, Wang, K, Li, J, Mikhailov, SF, Popov, VG, Wu, YK, and Sawatzky, BD. "First observation of the splittings of the E1 p-wave amplitudes in low energy deuteron photodisintegration and its implications for the Gerasimov-Drell-Hearn Sum Rule integrand." Physical Review C - Nuclear Physics 78.3 (2008). Full Text
Mikhailov, SF, Popov, VG, Huang, S, Li, J, and Wu, YK. "A pass-by-pass gain measurement technique for oscillator FELs." 30th International Free Electron Laser Conference, FEL 2008 (2008): 139-142.
Huang, S, Swift, G, and Wu, YK. "Controlling wiggler harmonic radiation to reduce damage to FEL cavity mirrors." 30th International Free Electron Laser Conference, FEL 2008 (2008): 135-138.
Mikhailov, SF, Busch, MD, Emamian, M, Hartman, SM, Kim, Y, Li, J, Popov, VG, Swift, G, Wallace, PW, Wang, P, Wu, YK, Howell, CR, Gavrilov, NG, Kurkin, GY, Matveev, Y, Anchugov, OV, Shvedov, DA, and Vinokurov, NA. "Commissioning of the booster injector synchrotron for the HIGS facility at Duke University." Proceedings of the IEEE Particle Accelerator Conference (2007): 1209-1211. Full Text
Tonchev, AP, Angell, C, Boswell, M, Chyzh, A, Howell, CR, Karwowski, HJ, Kelley, JH, Tornow, W, Tsoneva, N, and Wu, YK. "Study of collective dipole excitations below the giant dipole resonance at HIγS." AIP Conference Proceedings 891 (2007): 339-347. Full Text
Popov, V, Busch, M, Hartman, S, Li, J, Mikhailov, S, Wallace, P, Wang, P, Wu, YK, and Kurkin, GY. "Electron beam diagnostics for compact 1.2 GEV booster synchrotron." Proceedings of the IEEE Particle Accelerator Conference (2007): 4051-4053. Full Text
Storage ring based coherent far infrared/mm-wave radiation source and hard X-ray source with femto-second duration. An invited talk at 17th International Conference on the Application of Accelerators in Research and Industry (CAARI 2002. University ...