Generalized treatment of skew-cosh-Gaussian lasers for bifocal terahertz radiation

被引：34
作者：
Malik, Hitendra K. [1 ]
机构：
[1] Indian Inst Technol Delhi, Dept Phys, Plasma Waves & Particle Accelerat Lab, New Delhi 110016, India
来源：
PHYSICS LETTERS A | 2020年 / 384卷 / 15期
关键词：
Bifocal to unifocal terahertz conversion; Skew-cosh-Gaussian lasers; Medical application; Role of skewness parameters; Electron-neutral collisions; GENERATION; PULSES; BEAMS; FIELD; IDENTIFICATION; PROPAGATION; PLASMA;
D O I：
10.1016/j.physleta.2020.126304
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A generalized treatment of skew-cosh-Gaussian lasers with skewness parameters n and s is provided for obtaining bifocal terahertz radiation in a realistic plasma having electron-neutral collisions. In order to find and control the focusing of the radiation, a relation is established between the position of the peak of the radiation field and the parameters n and s. The significant role of these parameters in getting bifocal radiation or its conversion to unifocal radiation (or vice-versa) with a proposal for enhanced efficiency of the scheme is discussed in detail for its medical applications. (C) 2020 Elsevier B.V. All rights reserved.
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页数：6
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