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Role of Density Profiles for the Nonlinear Propagation of Intense Laser Beam through Plasma Channel
Joint Authors
Varshney, Meenu Asthana
Varshney, Dinesh
Sen, Sonu
Source
Advances in Optical Technologies
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-23
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
In this work role of density profiles for the nonlinear propagation of intense laser beam through plasma channel is analyzed.
By employing the expression for the dielectric function of different density profile plasma, a differential equation for beamwidth parameter is derived under WKB and paraxial approximation.
The laser induces modifications of the dielectric function through nonlinearities.
It is found that density profiles play vital role in laser-plasma interaction studies.
To have numerical appreciation of the results the propagation equation for plasma is solved using the fourth order Runge-Kutta method for the initial plane wave front of the beam, using boundary conditions.
The spot size of the laser beam decreases as the beam penetrates into the plasma and significantly adds self-focusing in plasma.
This causes the laser beam to become more focused by reduction of diffraction effect, which is an important phenomenon in inertial confinement fusion and also for the understanding of self-focusing of laser pulses.
Numerical computations are presented and discussed in the form of graphs for typical parameters of laser-plasma interaction.
American Psychological Association (APA)
Sen, Sonu& Varshney, Meenu Asthana& Varshney, Dinesh. 2014. Role of Density Profiles for the Nonlinear Propagation of Intense Laser Beam through Plasma Channel. Advances in Optical Technologies،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-474258
Modern Language Association (MLA)
Sen, Sonu…[et al.]. Role of Density Profiles for the Nonlinear Propagation of Intense Laser Beam through Plasma Channel. Advances in Optical Technologies No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-474258
American Medical Association (AMA)
Sen, Sonu& Varshney, Meenu Asthana& Varshney, Dinesh. Role of Density Profiles for the Nonlinear Propagation of Intense Laser Beam through Plasma Channel. Advances in Optical Technologies. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-474258
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-474258