Neville C.Luhmann, Jr.

Neville C.Luhmann, Jr.

UC Davis Distinguished Professor


  • Fellow of the American Physical Society, for pioneering work in the development of innovative far-infrared technology and diagnostics for fusion plasmas and for basic measurements in both laboratory and fusion plasmas.
  • Winner of 2012 John R. Pierce Award for Excellence in Vacuum Electronics for Outstanding contributions and leadership in the field of vacuum electronics as a scientist, engineer and educator
  • Fellow of the Institute of Electrical and Electronics Engineers, for advances in millimeter and submillimeter wave plasma diagnostics, intense microwave plasma interactions and coherent radiation generation.
  • Recipient of awarded the 2017 UC Davis Graduate Studies Distinguished Graduate and Postdoctoral Mentoring Award
  • Winner of 2007 Outstanding Mentor Award from the Consortium for Women and Research, UC Davis
  • Awarded UC Davis College of Engineering Dean's Outstanding Senior Research Faculty Award 2005-2006
  • Awarded the Kenneth J. Button Award for "Recognition of Outstanding Contributions to the Science of the Electromagnetic Spectrum" 2005: Administered by The Institute of Physics (London)
  • Awarded the IEEE Nuclear and Plasma Sciences Society, Plasma Science and Applications Committee (PSAC) Award for "Outstanding Contributions to the Field of Plasma Science", For pioneering contributions to basic plasma science, and for the development of coherent microwave sources, including harmonic gyrotrons and gyro-TWTs, and of millimeter wave imaging technologies, for plasma diagnostics and other applications, 2005
  • Recipient of the Robert L. Woods Award, Award for 'Excellence in Vacuum Electronics' 1994; Given by the Office of the Secretary of Defense, For leadership in the vacuum electronics community,


Education

Ph.D--Physics, 1972

University of Maryland, College Park

Contact information：

Phone: (530) 752-5414

Fax: (530) 754-9070

email: ncluhmann@ucdavis.edu


Research Interests

Millimeter wave solid state devices and systems, ultra short pulse electronics, phased antenna arrays, gyrotrons, free electron lasers, plasma physics, advanced accelerators, Compton X-Ray light sources for cancer diagnostics and treatment, millimeter wave imaging, tokamak diagnostics, far-infrared lasers, MEMS, microwave/plasma interactions, vacuum electronics.


Selected Publications

(out of approximately 392 papers in archival journals, 375 proceedings articles, and 18 books and chapters, and 1086 conference presentations):

  1. Y. Wang, B. Tobias, Y.-T. Chang, J.-H. Yu, M. Li, F. Hu, M. Chen, M. Mamidanna, T. Phan, A.-V. Pham, J. Gu, X. Liu, Y. Zhu, C.W. Domier, L. Shi, Ernest Valeo, G. J. Kramer, D. Kuwaharab, Y. Nagayamac, A. Mase, and N. C. Luhmann Jr., Millimeter-Wave Imaging of Magnetic Fusion Plasmas: Technology Innovations Advancing Physics Understanding, Nuclear Fusion, 57(7), p.072007, 2016.
  2. The V-Band CMOS Multi-Frequency Transmitter for Plasma Imaging Radar Reflectometric Diagnostics, Yu-Ting Chang, Yu Ye, Q. Jane Gu, Calvin Domier, and N.C. Luhmann, Jr., Microwave Symposium (IMS), 2016 IEEE MTT-S International
  3. Baig, A., Gamzina, D., Kimura, T., Atkinson, J., Domier, C., Popovic, B., Himes, L., Barchfeld, R., Field, M., Luhmann, N.C. Jr., “Performance of a Nano-CNC Machined 220 GHz Travelling Wave Tube Amplifier,” IEEE Transactions on Electron Devices, in IEEE Transactions on Electron Devices, vol. 64, no. 5, pp. 2390-2397, May 2017.
  4. Feng, J., Tang, Y., Gamzina, D., Li, X., Huang, X., Popovic, B., Himes, L., Barchfeld, R., Li, H., Pan, P., Letizia, R., Paoloni, C., Luhmann, N. C., “Fabrication of the 0.346 THz BWO for Plasma Diagnostics,” 2017 42nd International Conference on Infrared, Millimeter and Terahertz Waves, September, 2017.
  5. Gamzina, D., Zheng, Y., Gagnon, D., Stucky, P., Heritage, J., Britt., R. D., Luhmann, N. C., “263 GHz TWT-Amplified EPR Spectrometer,” in 2017 42nd International Conference on Infrared, Millimeter and Terahertz Waves, September, 2017.
  6. Gamzina, D., Barnett, L. R., Ravani, B., Luhmann, N. C., "Mechanical Design and Manufacturing of W-Band Sheet Beam Klystron," in IEEE Transactions on Electron Devices, vol. 64, no. 6, pp. 2675-2682, June 2017
  7. X. Ren, M. Chen, X. Chen, C.W. Domier, N.M. Ferraro, G.J. Kramer, N.C, Luhmann, Jr., C.M. Muscatello, R. Nazikian, L. Shi, B.J. Tobias, E. Valeo, MICROWAVE IMAGING REFLECTOMETRY FOR THE STUDY OF EDGE HARMONIC OSCILLATIONS ON DIII-D, Journal of Instrumentation 10(10), P10036 (2015).
  8. IEEE TRANSACTIONS ON ELECTRON DEVICES, VOL. 63, NO. 11, 4466, NOVEMBER 2016
  9. Electron Beam Transport System for 263-GHz Sheet Beam TWT, Yuan Zheng, Diana Gamzina, Branko Popovic, and Neville C. Luhmann, Jr.
  10. Design of a Compact and High Performance 263 GHz SB-TWT Circuit, Yuan Zheng, Diana Gamzina, Branko Popovic, and Neville C. Luhmann, Jr., IVEC, 2016
  11. Design and fabrication of a sheet beam BWO at 346 GHz. / Popovic, Branko; Himes, Logan; Gamzina, Diana; Luhmann Jr., Neville C.; Paoloni, Claudio; Letizia, Rosa; Mineo, Mauro; Malek Abadi, Ali; Yue, Lingna; Tang, Xiaopin; Feng, Jinjun; Tang, Ye; Gao, Mengchao ; Zhang, Fuzhi., Vacuum Electronics Conference (IVEC), 2015 IEEE International . IEEE, 2015. p. 1-2.
  12. G.H. Choe, G. Yun, Y. Nam, W. Lee, H. Park, A. Bierwage, C. Domier, N.C. Luhmann, Jr., J. Jeong, Y.S. Bae, “Dynamics of Multiple Flux Tubes in Sawtoothing KSTAR Plasmas Heated by Electron Cyclotron Waves:I Experimental Analysis of the Tube Structure,” Nuclear Fusion, 55(1): 013015, 2015.
  13. Muscatello C.M., Domier C.W., Hu X., Kramer G.J., Luhmann Jr. N.C., Ren X., Riemenschneider P., Spear A., Tobias B.J., Valeo E., Yu L., “Technical Overview of the Millimeter-Wave Imaging Reflectometer on the DIII-D Tokamak,” (Invited), Rev. Sci. Instrum. 85 11D702 (2014).
  14. C.M. Muscatello, C.W. Domier, X. Hu, N.C. Luhmann, Jr., X. Ren, P. Riemenschneider, A. Spear, B. Tobias, L. Yu, “Multi-Dimensional Visualization of MHD and Turbulence in Fusion Plasmas,” IEEE Transactions on Plasma Science, 42(10): 2734-2735, 2014.
  15. X. Ren, C.W. Domier, G. Kramer, N.C. Luhmann, Jr., C.M. Muscatello, L. Shi, G.J. Tobias, E. Valeo, “Process to Generate a Synthetic Diagnostic for Microwave Imaging Reflectometry with The Full-Wave Code FWR2D,” Review of Scientific Instruments, 85(11): 11D863, 2014.
  16. A.G. Spear, C.W. Domier, X. Hu, C.M. Muscatello, X. Ren, B.J. Tobias, N.C. Luhmann, Jr., “2D Microwave Imaging Reflectometer Electronics,” Review of Scientific Instruments, 85, 11D834, 2014.
  17. X. Han, X. Liu, Y. Liu, C.W. Domier, N.C. Luhmann, E.Z. Li, L.Q. Hu,X. Gao, “Design and Characterization of a 32-Channel Heterodyne Radiometer for Electron Cyclotron Emission Measurements on Experimental Advanced Superconducting Tokamak,” Review of Scientific Instruments, 85(7): 073506, 2014
  18. V. Igochine, A. Gude, S. Gunter, K. Lackner, Q. Yu, L. Orte Barrera, A. Bogomol, I. Classen, R.M. McDermott, N.C. Luhmann, Jr., “Conversion of The Dominantly Ideal Perturbataions into a Tearing Mode After a Sawtooth Crash,” Physics of Plasmas, 21(11): 110702, 2014.
  19. C. Luo, B.J. Tobias, B. Gao, Y. Zhu, J. Xie, C.W. Domier, N.C. Luhmann, Jr., T. Lan, A. Liu, H. Li, C. Yu, W. Liu, “Quasi-Optics Design of the Dual-Array ECE Imaging System on the EAST Tokamak,” Journal of Instrumentation, 9, 12014, 2014.
  20. Classen IGJ, Boom JE, Bogomolov AV, Wolfrum E, Maraschek M, Suttrop W, de Vries PC, Donné AJH, Tobias BJ, Domier C.W., N.C. Luhmann, Jr., ASDEX Team, “The Role of Temperature Fluctuations in the Dynamics of Type-I and Type-II Edge Localized Modes at ASDEX Upgrade,” Nuclear Fusion. 53:073005, 2014.
  21. W. Lee, J. Leem, J.A. Lee, Y.B. Nam, M. Kim, G.S. Yun, H.K. Park, Y.G. Kim, H. Park, K.W. Kim, C.W. Domier, N.C. Luhmann, Jr., K.D. Lee, Y.U. Nam, W.H. Ko, J.H. Jeong, Y.S. Bae and the KSTAR Team, “Microwave Imaging Reflectometry for Density Fluctuation Measurement on KSTAR,” Nuclear Fusion, 54, 2, 023012, 2014.
  22. J. Lai, C.W. Domier, N.C. Luhmann, Jr., “Noise Temperature Improvement for Magnetic Fusion Plasma Millimeter Wave Imaging Systems,” Review of Scientific Instruments, 85(3): 033501, 2014.
  23. J. Lee, G.S. Yun, J.E. Lee, M. Kim, M.J. Choi, W. Lee, H.K Park, C.W. Domier, N.C. Luhmann, S.A. Sabbagh, Y.S. Park, S.G. Lee, J.G. Bak, “Toroidal Mode Number Estimation of the Edge-Localized Modes Using the KSTAR 3-D Electron Cyclotron Emission Imaging System,” Review of Scientific Instruments, 85(6): 063505, 2014.
  24. P. Manz, J.E. Boom, E. Wolfrum, G. Birkenmeier, I.G.J. Classen, N.C. Luhmann, Jr., U. Stroth, and the ASDEX Upgrade Team, “Velocimetry analysis of Type-I Edge Localized Mode Precursors in Asdex Upgrade,” Plasma Physics Controlled Fusion, 56, 035010, 2014.
  25. K.C. Lee, C.W. Domier, N.C. Luhmann, Jr., R. Kaita, S.S. Medley, S.P. Gerhardt, NSTX Research Team, H.K. Park, S.A. Sabbagh, “Turbulence Induced Diffiusion Analysis of National Spherical Torus Experiment Based on the Gyrocenter Shift,” Journal of the Korean Physical Society, 63(11): 2102-6, 2013.
  26. M. Jiang, Z.B. Shi, S. Che, C.W. Domier, N.C. Luhmann, X. Hu, A. Spear, Z.T. Liu, X.T. Ding, J. Li, W.L. Zhong, W. Chen, Y.L. Che, B.Z. Fu, Z.Y. Cui, P. Sun, Y. Liu, Q.W. Yang, X.R. Duan, “Development of Electron Cyclotron Emission Imaging System on the HL-2A Tokamak,” Review of Scientific Instruments, 84(11): 113501/1-6, 2013.
  27. A.Baig, L.R. Barnett, D. Gamzina, N.C. Luhmann, Jr., “MEMS Compatible Sever for 220 GHz Ultra Wideband TWTA: Design and Particle-In-Cell Analysis,” Progress in Electromagnetics Research Letters, 41: 135-148, 2013.
  28. Modern Microwave and Millimeter-Wave Power Electronics, (Edited by Robert J. Barker, John H. Booske, Neville C. Luhmann, Jr. and Gregory S. Nusinovich), IEEE Press, ISBN-0-471-68372-8 2005.
  29. Y. Roh, C.W. Domier, N.C. Luhmann, Jr. “Design of an X-Mode Swept Frequency Modulation Reflectometer for the Measurement of KSTAR Plasma Density Profiles,” (Invited), Review of Scientific Instruments, 75, No. 10, p. 3871-3874, October 2004.
  30. C.W. Domier, N.C. Luhmann, Jr., Y. Roh, H.S. McLean, E.B. Hooper, D.N. Hill, “Ultrashort-Pulse Reflectometer Performance on Sustained Spheromak Physics Experiment,” Review of Scientific Instruments, 75, No. 10, p. 3868-3870, October 2004.
  31. D.R.Smith, E. Mazzucato, T. Munsat, H. Park, D. Johnson, L.Lin, C.W. Domier, M. Johnson, N.C. Luhmann, Jr., “Microwave Scattering System design for &rhoe scale Turbulence Measurements on NSTX,” Review of Scientific Instruments, 75, No. 10, p. 3840-3842, October 2004.
  32. H. Park, E. Mazzucato, T. Munsat, C.W. Domier, M. Johnson, N.C. Luhmann, Jr., J. Wang, Z. Xia, I.G.J. Classen, A.J.H. Donnè, M.J. van de Pol, “Simultaneous Microwave Imaging system for Density and Temperature Fluctuation Measurements on TEXTOR,” (Invited), Review of Scientific Instruments, 75, No. 10, p. 3787-3792, October 2004.
  33. W.C. Tsai, T.H. Chang, N.C. Chen, K.R. Chu, H.H. Song, N.C. Luhmann, Jr., “Absolute Instabilities in a High-Order-Mode Gyrotron Traveling Mode Gyrotron Traveling-Wave,” Phys. Rev. E., 70, 056402 (2004).
  34. H.H. Song, D.B. McDermott, Y. Hirata, L.R. Barnett, C.W. Domier, H.L. Hsu, T.H. Chang, W.C. Tsai, K.R. Chu, N.C. Luhmann, Jr., “Theory and Experiment of a 94 GHz Gyrotron Traveling-Wave Amplifier,” Physics of Plasmas, 11, pp. 2935-2941 (2004).
  35. B.H. Deng, H.C. Chen, C.W. Domier, M. Johnson, K.C. Lee, N.C. Luhmann, Jr., “Development of a Multichannel Far-Infrared Tangential Interferometer/Polarimeter for the National Spherical Torus Experiment,” Review of Scientific Instruments, 74, No. 3, Pg. 1617-1624, March 2003.
  36. Y. Roh, C.W. Domier, and N.C. Luhmann, Jr., “Ultrashort Pulse Reflectometry for Density Profile and Fluctuation Measurements on System on SSPX”, Review of Scientific Instruments, 74, No. 3, Pg. 1518-1521, March 2003.
  37. T. Munsat, E. Mazzucato, H. Park, B.H. Deng, C.W. Domier, N.C. Luhmann, Jr., J. Wang, Z.G. Xia, Z.G., A.J.H. Donnè, M.J. van de Pol, “Microwave Imaging Reflectometer for TEXTOR,” (Invited) Review of Scientific Instruments, 74, No. 3, Pg. 1426-1432, March 2003.
  38. H. Park, C.C. Chang, B.H. Deng, C.W. Domier, A.J.H. Donnè, K. Kawahata, C. Liang, P. Liang, H.J. Lu, N.C. Luhmann, Jr., A. Mase, Ha. Matsuura, E. Mazzucato, A. Miura, K. Mizuno, T. Munsat, Y. Nagayama, M.J. van de Pol, J. Wang, Z.G. Xia, W-K. Zhang, “Recent Advancements in Microwave Imaging Plasma Diagnostics,” Review of Scientific Instruments, 74, No. 10, Pg. 4239-4262, October 2003.
  39. B.H. Deng, D.L. Brower, G. Cima, C.W. Domier, A.J.H. Donnè, N.C. Luhmann, Jr., Th. Oyevaar, A. Wootton, “Imaging ] of core electron temperature fluctuations of Tokamak plasmas” IEEE Transactions on Plasma Science, 30, Issue 1, Part 1, Pg 72-73, February 2002.
  40. E. Mazzucato, T. Munsat, H. Park, B.H. Deng, C.W. Domier, N.C. Luhmann, Jr., A.J.H. Donnè, and M.J. van de Pol, “Fluctuation measurements in tokamaks with microwave imaging reflectometry,” Physics of Plasmas, 9, No. 5, pp. 1955-1961 May 2002.
  41. D.B., H.H. Song, Y. Hirata, A.T. Lin, T.H. Chang, H.L. Hsu, K.R. Chu, and N.C. Luhmann, Jr., “Design of a W-Band TE01 Mode Gyrotron Traveling-Wave Amplifier with High Power and Broad-Band Capabilities,’’ IEEE Transaction on Plasma Science, Special issue on High Power Microwave Generation, 30, No. 3, Pg. 894-902, June 2002.
  42. S.B., D.B. McDermott, D.A. Gallagher, N.C. Luhmann, Jr., “Cusp Gun TE21 Second-Harmonic Gyro-TWT Amplifier,” IEEE Transaction on Plasma Science, Special issue on High Power Microwave Generation, 30, No. 3, Pg. 909-914, June 2002.