Final Progress Report

s: 1. J.H. Brownell, H.L. Andrews, A. Bakhtyari, and M.F. Kimmitt, “Progress in microFEL development,” THz-Bridge Workshop, September 2002. 2. H.L. Andrews and J.H. Brownell, “Compact, medium energy, grating-based THz source,” THz-Bridge Workshop, September 2002. 3. I.J. Owens and J.H. Brownell, “High-order generation in a Cerenkov FEL,” 24 International Free Electron Laser Conference, September 2002. 4. Bakhtyari, J.E. Walsh, J.H. Brownell, “Gain in a Compact, Tunable Terahertz Laser,” CLEO/QELS 2002, May 2002. 5. Arash Bakhtyari, John E. Walsh, J. Hayden Brownell, “Oscillation in FEL Self-Amplified Spontaneous Emission,” APS April Meeting 2002. 6. Progress in the BNL-ATF Smith-Purcell experiment, J.H. Brownell, R. Fernow, H. Kirk, V. Yakimenko, presented at the 11 ATF User’s Meeting (January, 2002). 7. J.H. Brownell, J. Swartz, S. Trotz; M. Kimmitt; G. Doucas, R. Fernow, H. Kirk, V. Yakimenko, “Radiation induced by relativistic beams passing over a diffraction grating,” presented at the Free Electron Laser conference (August 2000). 8. Bakhtyari, J.E. Walsh, J.H. Brownell, H.L. Andrews, and M.F. Kimmitt, “SASE Experiments in a MicroFEL,” presented at the Free Electron Laser conference (August 2000). 9. Characterization of Smith-Purcell radiation from highly relativistic electrons, J.H. Brownell, S. Trotz, J. Walsh, and G. Doucas, presented at the Free Electron Laser conference (August 2000). 10. Grating Coupled Radiation in the Highly Relativistic Regime, J.E. Walsh, J.H. Brownell, J.C. Swartz, S. Trotz, H. Kirk, R. Fernow, and V. Yakimenko, Bull. Am. Phys. Soc. 44 (1999) 253. News reports: 1. A New Source of THz-FIR Radiation, J. E. Walsh, J. H. Brownell, J. C. Swartz, and M. F. Kimmitt, IEEE LEOS Newsletter 13 (1999) 11. 2. Free Electron Laser for the Far Infrared, David Pope in The Industrial Physicist, (February 1999) 18. 3. Technology Briefs in Photonics Spectra (August 1999) 44. (7) List of all participating scientific personnel: Dr. J.H. Brownell (Senior lecturer, PI) Dr. J.E. Walsh (Frances & Mildred Sears Prof. of Physics, Dartmouth College), PI. Dr. M.F. Kimmitt (Adjunct Professor) Dr. J.C. Swartz (Research Associate) Dr. S. Trotz (Research Associate) Gunnar Stolze (MS, 1999) Arash Bakhtyari (PhD, 2002) Heather Andrews (PhD candidate, expected June 2003) Israel Owens (PhD candidate, MS in 2000) (8) Report on inventions: A provisional patent has been applied for the Grating Horn invention. (9) References: [1] J. R. Pierce, Traveling-Wave Tubes (D. Van Nostrand Company, Inc., New York, 1950). [2] Friedman, A. et al., “Spontaneous and stimulated emission from quasifree electrons,” Reviews of Modern Physics 60, 471 (1988).