High current, small divergence electron beams produced by laser‐induced surface photoelectric effect

作者: D Charalambidis , E Hontzopoulos , C Fotakis , Gy Farkas , Cs Toth

DOI: 10.1063/1.342723

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摘要: The potential application of the laser induced linear surface photoelectric effect for high current and small divergence electron beam formation is examined. temporal evolution pulses angular distribution photoelectrons produced following KrF irradiation a gold studied as function intensity. A threshold intensity (140±20) MW/cm2 was determined, below which single photon photoeffect dominates any thermionic emission process. Electron measurements vertical horizontal polarization incident radiation showed that contribution from about three times larger than volume photoeffect. Under these conditions, an electrons 17°±2° determined. estimated normalized transverse emittance 20π mm mrad.

参考文章(28)
M.J. Rhee, R.F. Schneider, The root-mean-square emittance of an axisymmetric beam with a maxwellian velocity distribution Particle Accelerators. ,vol. 20, pp. 133- 141 ,(1986)
Gy. Farkas, Z.Gy. Horváth, I. Kertész, Influence of optical field emission on the nonlinear photoelectric effect induced by ultrashort laser pulses Physics Letters A. ,vol. 39, pp. 231- 232 ,(1972) , 10.1016/0375-9601(72)90720-7
Gy Farkas, Z Gy Horvath, Cs Toth, C Fotakis, E Hontzopoulos, Linear surface photoelectric effect of gold in intense laser field as a possible high-current electron source Journal of Applied Physics. ,vol. 62, pp. 4545- 4547 ,(1987) , 10.1063/1.339047
W.A. Barletta, D. Birx, J.K. Boyd, G. Caporaso, J.T. Weir, Enhancing the brightness of high current electron guns Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment. ,vol. 250, pp. 80- 86 ,(1986) , 10.1016/0168-9002(86)90864-8
Philip B. Allen, Theory of thermal relaxation of electrons in metals. Physical Review Letters. ,vol. 59, pp. 1460- 1463 ,(1987) , 10.1103/PHYSREVLETT.59.1460
D. Rieger, R.D. Schnell, W. Steinmann, V. Saile, A display-type analyzer with an image-processing system for angle-resolved photoelectron spectroscopy☆ Nuclear Instruments and Methods in Physics Research. ,vol. 208, pp. 777- 784 ,(1983) , 10.1016/0167-5087(83)91220-6
A Clarke, G Jennings, J C Campuzano, R F Willis, Reciprocal Space Imaging of Photoelectron Distributions Physica Scripta. ,vol. 35, pp. 423- 426 ,(1987) , 10.1088/0031-8949/35/4/002
J. G. Fujimoto, J. M. Liu, E. P. Ippen, N. Bloembergen, Femtosecond Laser Interaction with Metallic Tungsten and Nonequilibrium Electron and Lattice Temperatures Physical Review Letters. ,vol. 53, pp. 1837- 1840 ,(1984) , 10.1103/PHYSREVLETT.53.1837
S. W. Downey, L. A. Builta, D. C. Moir, T. J. Ringler, J. D. Saunders, Simple laser-driven, metal-photocathode electron source Applied Physics Letters. ,vol. 49, pp. 911- 913 ,(1986) , 10.1063/1.97532