Raman Amplification in Plasma: Thermal Effects
Raman Amplification in Plasma: Thermal Effects
复制标题
等离子体中的拉曼放大：热效应
DOI：
10.1063/1.3080915
复制
发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Farmer J
中科院分区：
文献类型：
--
作者：
Farmer J
从理论上研究了热效应对等离子体中拉曼放大的影响。结果表明，阻尼和移动在有限温度下的等离子体共振可以改变放大脉冲的演变。结果表明，脉冲压缩可以发生，这是没有预测的冷等离子体模型。虽然热效应会导致相互作用效率的降低，但这可以通过使用啁啾泵浦来避免。在这种情况下，这些效应可能是有益的，抑制了放大种子后面的脉冲串的发展，如在冷等离子体模型中所观察到的。
The impact of thermal effects on Raman amplification in plasma is investigated theoretically. It is shown that damping and the shift in plasma resonance at finite temperature can alter the evolution of an amplified pulse. It is shown that pulse compression can occur which is not predicted by the cold plasma model. Although thermal effects can lead to a reduction in the efficiency of the interaction, this can be avoided by using a chirped pump. In this case these effects can be beneficial, suppressing the development of a train of pulses behind the amplified seed, as observed in the cold plasma model.