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in creator/contributor: "Tzeng, K. C."

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The evolution of ultra-intense, short-pulse lasers in underdense plasmas

The propagation of short-pulse lasers through underdense plasmas at ultra-high intensities (I {>=}10{sup 19}W/cm) is examined. The pulse evolution is found to be significantly different than it is for moderate intensities. Rather than beam breakup from self-modulation, Raman forward scattering and laser hose instabilities the behavior is dominated by leading edge erosion. A differential equation which describes local pump depletion is derived and used to analyze the formation and evolution of t… more

Date: November 3, 1995

Creator: Decker, C. D.; Mori, W. B. & Tzeng, K. C.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Electron Acceleration in Relativistic Plasma Waves Generated by a Single Frequency Short-Pulse Laser

Experimental evidence for the acceleration of electrons in a relativistic plasma wave generated by Raman forward scattering (SRS-F) of a single-frequency short pulse laser are presented. A 1.053 {mu}m, 600 fsec, 5 TW laser was focused into a gas jet with a peak intensity of 8{times}10{sup 17} W/cm{sup 2}. At a plasma density of 2{times}10{sup 19} cm{sup {minus}3}, 2 MeV electrons were detected and their appearance was correlated with the anti-Stokes laser sideband generated by SRS-F. The result… more

Date: April 27, 1995

Creator: Coverdale, C. A.; Darrow, C. B.; Decker, C. D.; Mori, W. B.; Tzeng, K. C.; Clayton, C. E. et al.