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Yue Ying Lau

Contact Information:

OFFICE PHONE: (734) 764-5122
ADDRESS: 2923 Cooley Bldg.

Biographical Information:
Yue Ying Lau received his SB, SM, and PhD degrees in Electrical Engineering from the Massachusetts Institute of Technology. He was a junior faculty in Applied Mathematics at MIT from 1973 to 1979. He worked at the Naval Research Laboratory from 1980 to 1992. In 1992, he joined the University of Michigan at Ann Arbor as a Professor in the Department of Nuclear Engineering and Radiological Sciences, and in the Applied Physics Program. He has worked mostly on electron beams, coherent radiation sources, discharges, and laser-plasma interactions. He has 9 patents and over 1 refereed publications.

While at NRL, he won several Invention Awards and Publication Awards, and was the recipient of the 1989 Sigma-Xi Scientific Society Applied Science Award. He was elected Fellow of the American Physical Society 1n 1986, and was the recipient of the 1999 IEEE Plasma Science and Applications Award. He was a guest Editor of the IEEE Transactions on Plasma Science, Special Issue on High Power Microwave Generation (June, 1998). He currently serves as an Associate Editor of the Physics of Plasmas.

5 articles in refereed journals and has supervised 39 successful Ph.D. students.

Ongoing Projects (Mostly Theory and Modeling):

  • Intermodulation products and noise in klystrons and TWT's.
  • Multipactor discharges
  • Diamond window failures
  • Electron response under very intense, ultrashort, laser pulse
  • High power microwaves - loading by intense electron beams and plasmas
  • High power microwaves - AC Stark effects G. Ablation plasma ion implantation
  • Relativistic Child-Langmuir Law in crossed-field flows
  • Photo-stimulated electron emission 


  1. Y. Y. Lau, K. R. Chu, V. L. Granatstein and L. R. Barnett, "Wide-Band Fast Wave Gyrotron Traveling Wave Amplifier," U.S. Patent #4,533,875, August 6, 1985.
  2. L. R. Barnett, Y. Y. Lau, K. R. Chu and V. L. Granatstein, "Wide-Band Distributed RF Coupler," U.S. Patent #4,567,401, January 28, 1986.
  3. Y. Y. Lau, L. R. Barnett, "A Magnetic Field Gyrotron-Gyro-Magnetron," U.S. patent #4,550,271, October 29, 1985.
  4. J. M. Baird, L. R. Barnett and Y. Y. Lau, "An Active Circulator-Gyrotron Traveling Wave Amplifier," U.S. Patent #4,554,483, November 19, 1985.
  5. Y. Y. Lau, "A Collective Interaction Klystron," U.S. Patent #4,617,493, October 4, 1986.
  6. M. Friedman, Y. Y. Lau, J. Krall, and V. Serlin, "Ultra High Power Relativistic Klystron Amplifiers," U.S. Patent #5,132,638, July 21, 1992.
  7. Ya. S. Derbenev, Y. Y. Lau, and R. M. Gilgenbach, "Two-Beam Particle Acceleration Method and Apparatus", U.S. Patent #5,483,122, Jan. 9, 1996.
  8. V. B. Neculaes, R. M. Gilgenbach, Y. Y. Lau, "Low-Noise Crossed-Field Devices Such as a Microwave Magnetron, Microwave Oven Utilizing Same and Method of Converting a Noisy Magnetron to a Low-Noise Magnetron", U. S. Patent #6,872,929, March 29, 2005.
  9. V. B. Neculaes, R. M. Gilgenbach, Y. Y. Lau, "Low-Noise Crossed-Field Devices Such as a Microwave Magnetron, Microwave Oven Utilizing Same and Method of Converting a Noisy Magnetron to a Low-Noise Magnetron", U. S. Patent #6,921,890, July 26, 2005.

Recent Graduate Students Supervised by Y.Y. Lau:

  1. Peter R. Menge (co-chair with R.M. Gilgenbach), "Experimental excitation and reduction of the beam breakup instability in long-pulse electron beam transport" (defense 1993).
  2. Youfan Liu, "An Analysis of Emission Characteristics and Intrinsic Beam Quality of Field Emitter" (defense 1995), employed by Dow Corning.
  3. Peggy J. Christenson, "Equilibrium, Stability, and Turbulence in Cycloidal Electron Flows in Crossed Electric and Magnetic Fields" (defense 1996), employed by Los Alamos National Laboratory.
  4. John W. Luginsland, "Design Considerations in a Novel Two-beam Accelerator", (defense 1996), employed by Air Force Research Laboratory.
  5. Rami A. Kishek, "Interaction of Multipactor Discharge and RF Structures", (defense 1997), employed by University of Maryland.
  6. Lay-Kee Ang, "Laser-Surface Interaction: Energy Absorption and Surface Structures", (defense 1999), employed by Los Alamos National Laboratory.
  7. August Valfells, "Multipactor Discharge: Frequency Response, Suppression, and Relation to Window Breakdown", (defense 2000), employed by University of Maryland.
  8. Craig Wilsen, “Theory of intermodulation in high power microwave amplifiers” (defense 2001).
  9. Rex Anderson (co-chaired with M.L. Brake), “Multipactor experiment on a dielectric surface” (defense 2001).
  10. Bo Qi (co-chaired with Ron Gilgenbach), “Ablation Plasma Ion Implantation”, (defense 2002).
  11. Herman Bosman, “Investigation of failure mechanisms in high-power microwave transmission windows” (defense 2004).
  12. Fei He (co-chaired with Don Umstadter), “Interactions of free electrons with an ultra intense laser” (defense 2004).
  13. Richard D. Kowalczyk, “A klystron study: Intermodulation suppression and beam loading of cavities” (defense 2005).
  14. Anthony R. Valenzuela (co-chaired with Donald Umstadter), “Relativistic free electrons in an intense laser field: Experimental observations of optically-induced deflection of an ultrashort electron beam” (defense 2005).
  15. Allen L. Garner, “Electrical pulse induced biological effects using dielectric spectroscopy and mathematical models” (defense 2006).
  16. Yoshiteru Hidaka (co-chair with R.M. Gilgenbach), "Experimental and Simulational Studies of the University of Michigan Large ECR Source as an Electron Propulsion Neutralizer" (defense December 5, 2005), employed by MIT.
  17. Trevor Strickler (co-chair with R.M. Gilgenbach), "Azimuthal Wire Motion and Ablation Dynamics in Z-Pinches" (defense July 21, 2006), employed by DoE Postdoc at Princeton Plasma Physics Lab.
  18. Phongphaeth Pengvanich, “Theory of injection locking and rapid start-up of magnetrons, and effects of manufacturing errors in terahertz traveling wave tubes” (defense 2007).
  19. Nicholas Jordan (co-chair with R.M. Gilgenbach), "Laser Fabrication of High-K Dielectrics for High Current Cathodes" (defense December 17, 2007), employed as Postdoctoral Research Fellow at UM.

Refereed Journal Publications (1995 to Present)