Backward Raman amplification in plasmas with chirped wideband pump and seed pulses*
Wu Zhao-Huia),b),c), Wei Xiao-Fengb), Zuo Yan-Leib), Liu Lan-Qinb), Zhang Zhi-Mengb), Li Minb), Zhou Yu-Liangb), Su Jing-Qina),†
Fig. 4. Profiles of the output pulses obtained with chirped pump and nonchirped seed #cod#x03BD; a #cod#x003D; 210.9, plasma length #cod#x003D; 2 mm. Red, blue, and green curves are the integrated amplitudes of the pump, the seed, the Langmuir wave | a |, | b |, | f |, respectively.