Startseite Combined influence of axial electron temperature and exponential plasma density ramp on the self-focusing of a chirped laser in plasma
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Combined influence of axial electron temperature and exponential plasma density ramp on the self-focusing of a chirped laser in plasma

  • Niti Kant und Vishal Thakur ORCID logo EMAIL logo
Veröffentlicht/Copyright: 3. Juli 2020

Abstract

An analysis of the self-focusing of highly intense chirped pulse laser under exponential plasma density ramp with higher order value of axial electron temperature has been done. Beam width parameter is derived by using paraxial ray approximation and then solved numerically. It is seen that self-focusing of chirped pulse laser is intensely affected by the higher order values of axial electron temperature. Further, influence of exponential plasma density ramp is studied and it is concluded that self-focusing of laser enhances and occurs earlier. On the other hand defocusing of beam reduces to the great extent. It is noticed that the laser spot size reduces significantly under joint influence of the density ramp and the axial electron temperature. Present analysis may be useful for the analysis of quantum dots, the laser induced fusion and etc.


Corresponding author: Vishal Thakur, Department of Physics, Lovely Professional University, Phagwara, Punjab, 144411, India, E-mail:

  1. Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2020-01-20
Accepted: 2020-04-23
Published Online: 2020-07-03
Published in Print: 2020-07-28

© 2020 Walter de Gruyter GmbH, Berlin/Boston

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