Professor Kou,Chwung-Shan

Professor

Kou,Chwung-Shan

Office：886-3-5742546 (PHYS R418)

Laboratory：

Electromagnetic Wave and Plasma Physics Laboratory

Lab Tel： (PHYS R018)

Fax：886-3-5723052

E-mail：kou@phys.nthu.edu.tw

	Education
1986-1991 Ph.D. in Electrical Engineering, University of California, Los Angeles, USA, U.S.A. 1982-1984 M.S. in Nuclear Engineering, National Tsing Hua University, R.O.C. 1978-1982 B.E. in Nuclear Engineering, National Tsing Hua University, R.O.C.
	Professional Experience
Current position： 1999-present, Professor of Physics, Tsing Hua University, R.O.C. Experience： 1991-1999, Adjunct Professor of Physics Dept., National Tsing Hua University, R.O.C.
	Research Fields
Plasma Physics Relativity Electronics Microwave Engineering
	Research Interests and achievement
Updated on September 3, 2006 My research interest is to study the physics and application of the plasma. Plasma consists of electrons, ions and neutral particles. It will demonstrate collective behaviors, such as wave motions, when the density of charged particles is high enough. Above all, the interactions inside plasmas are mostly ” heterogeneous”, which means they involve interactions among violet light, electrons, ions, radicals, especially energetic particles. Consequently, there are many novel physical and chemical reactions occurring in plasmas. For instance, the growth of diamond films, carbon nanotubes. My research topics includes: (1) microwave large area surface wave plasma source and plasma resonance; (2) plasma immersion ion implantation and the dynamics of sheath; (3) inductively coupled plasma sources and plasma heating modes; (4) low temperature atmospheric plasma sources (dielectric barrier discharges, plasma jets); (5) diamond /DLC films, field emission; (6) single crystal diamond rod and devices; (7) liquid crystal alignment by plasma beams.

Selected Publications

T. J. Wu , W. J. Guan, C. M. Tsai, W. Y. Yeh, and C. S. Kou “ Experimental Study of the Plasma Resonance in a Planar Surface Wave Plasma”, Phys. Plasmas, 8,3195, 2001
W. Y. Yeh, J. Hwang, A. P. Lee, C. S. Kou and H. Chang, “ Composite diamond-like carbon and silicon carbide tips grown on oblique-cut Si(111) substrates”, Appl. Phys. Lett. 79,3609, 2001
C. J. Huang, Y. K. Chih, J. Hwang, A. P. Lee and C. S. Kou, “Field emission from amorphous-carbon nanotips on copper”, J. Appl. Phys., 94,6796(2003)
Y.K. Chih, C.H. Chen, J. Hwang, A.P. Lee, and C. S. Kou, “ formation of nano-scale tubular structure of single crystal diamond”, Diamond & Related Materials, 13, 1614, 2004
T. J. Wu and C. S. Kou, "Analysis of the Propagation of the Wave in the Plasma Guided by a Periodical Vane-Type Structure", Phys. Plasmas, 8, 3195, 2005
K. Y. Wu, P. C. Liu, C. Y. Lee, C. H. Chen, H. K. Wei, C. M. Yeh, C. W. Chen, C. S. Kou, C. D. Lee, and J. Hwang, “Liquid Crystal Alignment on a-C:H Films by Nitrogen Plasma Beam Scanning" J. Appl. Phys., 98, 083518, 2005
Chen-Ming Tsai, A. P. Lee and C. S. Kou ‘ Characterization of heating mode transition in a radio-frequency inductively coupled plasma”, J. Phys. D: Appl. Phys., 39, 3821 2006
C. M. Yeh, M. Y. Chen, J. Hwang, J.-Y. Gan, and C. S. Kou, 2006, “Field emission from the composite structure of vertical single-walled carbon nanotubes/ carbon nanocones”, Nanotechnology (accepted)

All Publications

A. Refereed Papers:

1. D.S. Furuno, D.B. McDermott, H. Cao, C.S. Kou, N.C. Luhmann, Jr., P. Vitello, and K. Ko, "A Four Cavity High Harmonic Gyroklystron Amplifier," Int. J. Electronics 65, No. 3, pp. 429-435 (1988).
2. D.S. Furuno, D.B. McDermott, H. Cao, C.S. Kou, N.C. Luhmann, Jr., and P. Vitello, "Theoretical and Experimental Investigation of a High Harmonic Gyro-TWT Amplifier," Phys. Rev. Lett., 62, pp. 1314-1317 (1989).
3. C.S. Kou, D.B. McDermott and N.C. Luhmann, JR., and K.R. Chu, "Prebunched High Harmonic Gy,rotron" IEEE Trans. on Plasma Sci. Vol. 18, No. 3, pp. 343-349 (1990).
4. D.S. Furuno, D.B. McDermott, C.S. Kou and N.C. Luhmann and P. Vitello, "Operation of a Large Orbit, High Harmonic Gyro-TWT Amplifier," IEEE Trans.on Plasma Sci. Vol. 18. No.3. pp. 313-349 (1990).
5. A.T. Lin, K.R. Chu, C.C. Lin, C.S. Kou, D.B. McDermott and N.C. Luhmann, Jr., "Comparative Analysis of Fundamental and Second Harmonic Gyro-TWT Amplifier", Int. J. Electronics, Vol. 72 NOS 5 and 6, 873-885 (1992).
6. C.S. Kou, Q.S. Wang, D.B. McDermott, A.T. Lin, K.R. Chu and N.C. Luhmann, Jr "High-power Harmonic Gyro-TWT's-Part I: Linear Theory and Oscillation Study"", IEEE Trans. on Plasma Sci. Vol. 20, No. 3, pp. 155-162 (1992).
7. Q.S. Wang, C.S Kou, D.B. McDermott, A.T. Lin, K.R. Chu and N.C. Luhmann, Jr "High-power Harmonic Gyro-TWT's-Part II: Nonlinear Theory and Design", IEEE Trans. on Plasma Sci. Vol. 20, No. 3, pp. 163-169 (1992).
8. K.R. Chu, C.S. Kou, J.M. Chen, Y.C. Tsai, C. Cheng, S.S. Bor and L.H. Chang, "Spectral Domain Analysis of Open Cavities", Int. J. Infrared and Millimeter Waves, Vol. 13, No. 8 (1992).
9. C.S. Kou, S.H. Chen, L.R. Barnett, H.Y. Chen, and K.R. Chu, "Experimental Study of An Injection - Locked Gyrotron Backward-Wave Oscillator," Phys. Rev. Lett. 70, 924-927 (1993).
10. C. S. Kou, "Starting Oscillation Conditions for Gyrotron Backward Wave Oscillator", Phys. Plasmas, 1, p. 3093 (1994).
11. Q. S. Wang, D. B. Mcdermott, C. K. Chong, C. S. Kou, K. R. Chu, and N. C. Luhmann, Jr. "Stable/MW, Third-harmonic Gyro-TWT Amplifier", IEEE Trans., Plasma Sci. 22, p. 608 (1994).
12. C. S. Kou, K. R. Chu, D. B. McDermott and N. C. Luhmann, Jr. "Effective Bandwidth and the Kompfner Dip for Cyclotron Autoresonance Maser Amplifier". Phys. Rev. E, Vol. 51, No. 1, 642 (1995).
13. C. S. Kou, "On the Launching Loss and the Weibel Instability of the Gyro-Traveling Wave Tubes", Phys. Plasmas, Vol. 2, No2, 578 (1995).
14. C. S. Kou, "Backward Wave Amplification in the Gyrotron", Phys. Plasmas 4, 4140 (1997).
15. C. S. Kou, "Effects of the Sever on Two-stage Gyro-TWT Amplifier", submitted to Int. J. Infrared and Millimeter Waves 18, 1897. (1997).
16. C. S. Kou, M. H. Wu and Fourier Tseng, "Nonlinear Analysis of a Multi-cavity Gyro-Twystron", Int. J. Infrared and Millimeter Waves 18, 1957. (1997)
17. C. S. Kou and Fouries Tseng, "Linear Theory of Gyrotron Traveling Wave Tubes with Non-Uniform and Lossy Interaction Structures", Phys. Plasmas 5, 2454 (1998)
18. C. S. Kou, C. H. Chen and T. J. Wu, "Mechanism of Efficiency Enhancement by a Tapered Waveguide in Gyrotron Backward Wave Oscillators", Phys. Rev. E57, 7162 (1998).
19. C. C. Chang and C. S. Kou, "Electron-Wave Quantum Well Energy Band-Pass Filters", J. Phys. D: Appl. Phys. 32, 139(1999).
20. C. S. Kou, J. Y. Hung and C. M. Tsai, "Experimental Study of a Slot Antenna Excited by a TE001 Mode Coaxial Cavity", Int. J. Infrared and Millimeter Waves, Vol 20, No. 5 (1999).
21. T. J. Wu and C. S. Kou, "Experimental Study of a High Power Coupler for a Tunable Cavity Formed by vane-type Structure", Int. J. Infrared and Millimeter Waves, Vol 20, No. 6 (1999).
22. T. J. Wu and C. S. Kou, "Linear Analysis of TWT wit Nonuniform Lossy Interaction Structure", Int. J. Infrared and Millimeter Waves, Vol 20, No. 7 (1999).
23. T. J. Wu and C. S. Kou, "A Large-Area Plasma Source Excited by a Tunable Surface Wave Cavity", Rev. Sci. Instrum. 70, 2331 (1999).
24. T. J. Wu and C. S. Kou, "Analysis of the Propagation of the Wave in the Plasma Guided by a Periodical Vane-Type Structure", to be submitted.
25. C. S. Kou, C. M. Tsai, and T. J. Wu, "On the Surface Wave Propagation in Dissipative Planar Plasmas", to be submitted.

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