University of Maryland Institute for Research in Electronics and Applied Physics
Institute for Research in Electronics and Applied Physics

Gregory S. Nusinovich
Senior Research Scientist

Mailing Address:
Institute for Research in
Electronics and Applied Physics
Energy Research Facility, Rm. 1202M
University of Maryland
College Park, Maryland
20742-3511

Phone: (301) 405-4917
Email: gregoryn at umd.edu
FAX: (301) 314-9437


Research • Publications


Gregory Nusinovich was born in 1946 in Berdichev, former Soviet Union. He received the B.S. and Ph.D. degrees from Gorky State University in 1968 and 1975, respectively.

After graduating from Gorky University he joined the Gorky Radiophysical Research Institute. From 1977 to 1990 he was a research scientist and head of the research group at the Institute of Applied Physics of the Academy of Sciences of the USSR. From 1968 to 1990 his scientific interests were aimed at developing high power millimeter and submillimeter-wave gyrotrons. He was also a member of the Scientific Council on Physical Electronics of the Academy of Sciences of the USSR.

In 1991 he immigrated to the USA, where he joined the research staff at the Institute for Research in Electronics and Applied Physics, University of Maryland. His current research interests include the study of high power electromagnetic radiation from various types of microwave sources. Since 1991 he has also served as a consultant to the Science Applications International Corporation, the Physical Sciences Corporation, and Omega-P.

Dr. Nusinovich is the author of the book "Introduction to the Physics of Gyrotrons," published by The Johns Hopkins University Press, 2004. It is included in the series, Johns Hopkins Studies in Applied Physics.

Dr. Nusinovich is a Fellow of both the Institute of Electrical and Electronics Engineers and the American Physical Society.

Publications Since 1997

  1. "Theory of Helix PASOTRON Backward Wave Oscillator," T. M. Abu-elfadl, A. G. Shkvarunets, Y. Carmel, T. M. Antonsen, Jr., and V. L. Granatstein, Special Issue of IEEE-PS on HPM Generation (to be published).

  2. "Nonlinear Theory of the Gyro-TWT: Comparison of Analytical Methods and Numerical Codes," G. S. Nusinovich, O. V. Sinitsyn, K. T. Nguyen, and V. L. Granatstein, Ibid.

  3. "On the Use of the Kompfner Dip Effect in Multi-Stage Gyro-TWTs of High Average Power," G. S. Nusinovich and M. Walter, Ibid.

  4. "Realization of High Efficiency in a Plasma-Assisted Microwave Source with Two-Dimensional Electron Motion," G. S. Nusinovich, A. G. Shkvarunets, Y. Carmel, T. M. Antonsen, T. M. Abu-elfadl, J. Rodgers, T. M. Antonsen, Jr., V. L. Granatstein, and D. M. Goebel, Phys. Plasma (submitted).

  5. "Theory of Clustered-Cavity Gyroklystron," G. S. Nusinovich, T. M. Antonsen, Jr., H. Guo, and V. L. Granatstein, Phys. Plasma (to be published).

  6. "Self-Consistent Non-Stationary Processes in Phase-Mixed Electron Beams Focused by Mobile Ions," G. S. Nusinovich, Yu. P. Bliokh, J. Felsteiner, and V. L. Granatstein, Phys. Rev. E (submitted).

  7. "Phase Stability in Gyro-Traveling-Wave-Tubes," G. S. Nusinovich, J. Rodgers, W. Chen, and V. L. Granatstein, IEEE-ED 48, 1460-1468 (2001).PDF

  8. "Experimental Study of Phase Deviation and Pushing in a Frequency Doubling, Second Harmonic Gyro-Amplifier," J. Rodgers, H. Guo, G. S. Nusinovich, and V. L. Granatstein, IEEE Trans. Electron Devices 48, 2434-2441 (2001).PDF

  9. "Analytical Theory of Frequency-Multiplying Gyro-Traveling-Wave-Tubes," G. S. Nusinovich, W. Chen, and V. L. Granatstein, Phys. Plasmas 8, 631-637 (2001).PDF

  10. "Linear Theory of Gyro-Traveling-Wave-Tubes with Distributed Losses," G. S. Nusinovich, O. V. Sinitsyn, and A. Kesar, Phys. Plasmas 8, 3427-3433 (2001).PDF

  11. "Nonstationary Phenomena in Tapered Gyro-Backward-Wave Oscillators," G. S. Nusinovich, A. N. Vlasov, and T. M. Antonsen, Jr., Phys. Rev. Lett. 87, paper 218301 (Nov. 2001).PDF

  12. "Quasilinear Theory of Mode Interaction in Gyrotrons with Azimuthally Inhomogeneous Electron Emission," G. S. Nusinovich and M. Botton, Phys. Plasmas 8, 1029-1036 (2001).PDF

  13. "Traveling-Wave Tubes and Backward-Wave Oscillators with Weak External Magnetic Field," T. M. Abu-elfadl, G. S. Nusinovich, A. G. Shkvarunets, Y. Carmel, T. M. Antonsen, Jr., and D. Goebel, Phys. Rev. E 63, paper 066501 (June 2001).PDF

  14. "Effect of the Azimuthal Inhomogeneity of Electron Emission on Gyrotron Operation," G. S. Nusinovich, A. N. Vlasov, M. Botton, T. M. Antonsen, Jr., S. Cauffman, and K. Felch, Phys. Plasmas 8, 3473-3479 (2001).PDF

  15. "Nonstationary Phenomena in Tapered Gyro-Backward-Wave Oscillators," G. S. Nusinovich, A. N. Vlasov, and T. M. Antonsen, Jr., Phys. Rev. Lett. 87, paper 218301 (Nov. 2001).PDF

  16. "Temporal Evolution of Electron Beam Transport in PASOTRON Microwave Sources," Yu. P. Bliokh and G. S. Nusinovich, IEEE-PS 29, 951-959 (Dec. 2001).

  17. "Axial Mode Locking in a Harmonic-Multiplying, Inverted Gyrotwystron," J. Zhao, Gregory S. Nusinovich, H. Guo, John C. Rodgers, and Victor L. Granatstein, IEEE-PS 28, 597-605 (2000).PDF

  18. "Studies of a Three-Stage Inverted Gyrotwystron," J. Zhao, H. Guo, G. S. Nusinovich, J. Rodgers, and V. L. Granatstein, Special Issue of IEEE-PS on High-Power Microwave Generation 28, 657-664 (2000).PDF

  19. "Mode Interaction in Backward-Wave Oscillators with Strong End Reflections," G. S. Nusinovich and Yu. P. Bliokh, Phys. Plasmas 7, 1294-1301 (2000).PDF

  20. "A Submillimeter-Wave Gyroklystron: Theory and Design," G. S. Nusinovich, M. Walter, M. Kremer, M. E. Read, and D. Boehme, Special Issue of IEEE-PS on High-Power Microwave Generation 28, 936-944 (June 2000).

  21. "Present Status of a 17.1 GHz Four-Cavity Frequency-Doubling Coaxial Gyroklystron Design," I. Yovchev, W. Lawson, G. S. Nusinovich, V. L. Granatstein, and M. Castle, Ibid., 523-528.

  22. "Design of a Frequency-Doubling, 35 GHz, 1 MW Gyroklystron," M. Walter, G. S. Nusinovich, W. Lawson, V. L. Granatstein, B. Levush, and B. G. Danly, Ibid., 688-694.

  23. "Overmoded GW-Class Surface-Wave Microwave Oscillator," A. N. Vlasov, A. G. Shkvarunets, J. Rodgers, Y. Carmel, T. M. Antonsen, Jr., T. Abu-Elfadi, D. Lingze, V. A. Cherepenin, G. S. Nusinovich, M. Botton, and V. L. Granatstein, Ibid., 550-560.

  24. "Cherenkov Radiation of Electromagnetic Waves by Electron Beams in the Absence of External Magnetic Field," G. S. Nusinovich and Yu. P. Bliokh, Phys. Rev. E 62, 2657-2666 (2000).PDF

  25. "High Efficiency, Phase-Locked Operation of the Harmonic-Multiplying Inverted Gyrotwystron Oscillator," J. Rodgers, H. Guo, Victor L. Granatstein, S. H. Chen, Gregory S. Nusinovich, M. Walter, and J. Zhao, IEEE-PS 27, 412-421 (1999).PDF

  26. "Nonlinear Theory of Gyrotwystrons with Stagger-Tuned Cavities," Wenjun Chen, Gregory S. Nusinovich, and V. L. Granatstein, Special Issue of IEEE-PS on CRMs and Gyrotrons, IEEE-PS 27, 429-437 (1999).PDF

  27. "Linear Theory of Multistage Forward-Wave Amplifiers," G. S. Nusinovich and M. Walter, Phys. Rev. E 60, 4811-4822 (1999).PDF

  28. "Theory of Step-Tunable Gyrotrons Operating at Two Cyclotron Harmonics," G. S. Nusinovich and M. Read, Special Issue of IEEE-PS on CRMs and Gyrotrons, IEEE-PS 27, 335-362 (1999).

  29. "Review of the Theory of Mode Interaction in Gyrodevices," Ibid., 313-326.

  30. "Gain and Backwidth in Stagger-Tuned Gyroklystrons and Gyrotwystrons," G. S. Nusinovich, B. Levush, and B.G. Danly, Ibid., 422-428.

  31. "Theory of the Anomalous Doppler CRM Amplifier with Tapered Parameters," G. S. Nusinovich, M. Korol, and E. Jerby, Phys. Rev. E 59, 2311-2321 (1999).PDF

  32. "Advances in Plasma-Filled Microwave Sources," D. M. Goebel, Y. Carmel, and G. S. Nusinovich, Phys. Plasmas 6, 2225-2232 (1999).PDF

  33. "Effect of Plasma Nonlinearity on Stochastization of Oscillations Excited in Beam-Plasma Microwave Oscillators," Yu. P. Bliokh, M. G. Liubarskiy, V. O. Podobinskiy, and G. S. Nusinovich, Appl. Nonlinear Dynamics 7, 56-68 (1999).

  34. "Experimental Studies of a High-Power-X-Band Coaxial Gyroklystron," J. Cheng, X. Xu, W. J. Lawson, J. P. Calame, M. Castle, B. P. Hogan, V. L. Granatstein, G. S. Nusinovich, and M. Reiser, IEEE-PS 27, 1175-1187 (1999).

  35. "Operation of a High Performance, Harmonic-Multiplying, Inverted Gyrtwystron," Hezhong Guo, Shiaw-Huei Chen, Victor L. Granatstein, John Rodgers, Gregory S. Nusinovich, Mark T. Walter, and Wenjun Chen, IEEE-PS 7th Special Issue on High-Power Microwaves 26, 451-460 (1998).PDF

  36. "Linear Theory of a Gyrotwystron with Stagger-Tuned Cavities," Gregory S. Nusinovich, Wenjun Chen, and V. K. Tripathi, ibid. 468-474 (1998).PDF

  37. "Theory of Multi-Beam Stagger-Tuned Gyroklystrons," Gregory S. Nusinovich, Baruch Levush, and Bruce G. Danly, ibid. 475-481 (1998).PDF

  38. "Excitation of Backward Waves in Forward-Wave Amplifiers," G. S. Nusinovich, M. Walter, and J. Zhao, Phys. Rev. E 58, 6594-6605 (1998).PDF

  39. "Double Resonance in Cyclotron Resonance Masers," G. S. Nusinovich and J. Zhao, Phys. Rev. E 58, 1002-1010 (1998).PDF

  40. "Recent Progress in the Development of Plasma-Filled Traveling-Wave Tubes and Backward-Wave Oscillators," G. S. Nusinovich, Y. Carmel, T. M. Antonsen, Jr., D. M. Goebel, and J. Santoru, IEEE-PS 7th Special Issue on High-Power Microwaves 26, 628-645 (1998).

  41. "Linear Theory of a Plasma Loaded, Helix Type, Slow Wave Amplifier," S. Kobayashi, T. M. Antonsen, Jr., and G. S. Nusinovich, Ibid., 669-679.

  42. "Chaotic Oscillations Enhanced by Magnetosonic Waves in Plasma-Filled Traveling-Wave Tubes," Yu. P. Bliokh, M. G. Liubarskii, V. O. Podobinskii, Ya. B. Fainberg, G. S. Nusinovich, S. Kobayashi, Y. Carmel, and V. L. Granatstein, Phys. Plasmas 5, 4061-4069 (1998).PDF

  43. Review of the book "Generation and Application of High Power Microwaves," eds. R. A. Cairns and A.D.R. Phelps, Fusion Technology 34, September 1998.

  44. "Excitation of Backward Waves in Forward-Wave Amplifiers," G. S. Nusinovich, M. Walter, and J. Zhao, Phys. Rev. E 58, 6594-6605 (1998).PDF

  45. "Operation of a Highly Overmoded, Harmonic-Multiplying, Wideband Gyrotron Amplifier," H. Guo, S. H. Chen, V. L. Granatstein, J. Rodgers, G. Nusinovich, M. Walter, B. Levush, and W. J. Chen, Phys. Rev. Lett. 79, 515-518 (1997).PDF

  46. "Effect of Technical Noise on Radiation Linewidth in Free-Running Gyrotron Oscillators," O. Dumbrajs and G. S. Nusinovich, Phys. Plasmas 4, 1413-1423 (1997).PDF

  47. "Technical Noise in Gyroklystrons and Phase-Locked Gyrotron Oscillators," G. S. Nusinovich and O. Dumbrajs, Phys. Plasmas 4, 1424-1433 (1997).PDF

  48. "Scaling Law for Ballistic Bunching in Multicavity Harmonic Gyroklystrons," G. S. Nusinovich, G. P. Saraph, and V. L. Granatstein, Phys. Rev. Lett. 78, 1815-1818 (1997).PDF

  49. "Theory of the Inverted Gyrotwystron," G. S. Nusinovich and M. Walter, Phys. Plasma 4, 3394-3402 (1997).PDF

  50. "Gain and Bandwidth in Stagger-Tuned Gyroklystrons," G. S. Nusinovich, B. G. Danly, and B. Levush, Phys. Plasmas 4, 469-478 (1997).PDF

  51. "Effect of the Zero Spatial Harmonic in a Slow Electromagnetic Wave on Operation of Relativistic Backward-Wave Oscillators," G. S. Nusinovich, A. N. Vlasov, and B. Levush, Phys. Plasmas 4, 1402-1412 (1997).PDF

  52. "Space Charge Effects in Plasma-Filled Traveling-Wave Tubes," G. S. Nusinovich, L. A. Mitin, and A. N. Vlasov, Phys. Plasmas 4, 4394-4403 (1997).PDF

  53. "Review of High-Power Microwave Source Research," S. Gold and G. S. Nusinovich, Rev. Sci. Instrum. 68, 3945-3974 (1997).PDF


IREAP Homepage