论文标题
通过在碰撞等离子体中混合两个偏斜(CHG)Cosh-Gaussian激光束,可用的多灶性THZ辐射
Powered Multifocal THz Radiation by Mixing of Two Skew (ChG) Cosh-Gaussian Laser Beams in Collisional Plasma
论文作者
论文摘要
考虑到现实情况,在等离子体中,电子中性碰撞持续存在,通过击败参数N&S的两个偏斜的Cosh-Gaussian(SG)激光,对THZ辐射的产生进行了分析计算。这些激光器在高斯激光器上的能力详细讨论了碰撞和梁宽度对机理的THZ场振幅和效率的影响。定义了THZ场峰的临界横向距离,该峰值依赖于CHG激光器的偏度参数。尽管当使用偏斜的CHG激光器时,电子中性碰撞和较大的光束宽度会导致THZ场的急剧降低,但机理的效率仍然比高斯激光器的情况大得多。此外,Skewchg激光器会产生更强和多灶性的THZ辐射。
Considering a realistic situation, where electron-neutral collisions persist in plasma, analytical calculations are carried out for the THz radiation generation by beating of two Skew Cosh-Gaussian (SG) lasers of parameters n & s. The competency of these lasers over Gaussian lasers is discussed in detail with respect to the effects of collision and beam width on the THz field amplitude and efficiency of the mechanism. A critical transverse distance of the peak of the THz field is defined that shows a dependence on the skewness parameter of skew ChG lasers. Although electron-neutral collisions and larger beam width lead to the drastic reduction in the THz field when the skew ChG lasers are used in the plasma, the efficiency of the mechanism remains much larger than the case of Gaussian lasers. Moreover, the skewChG lasers produce stronger and multifocal THz radiation.