Filamentation instability in the interaction of high-order Hermite cosh Gaussian laser beam and inhomogeneous plasmas
Based on high order paraxial theory and WKB approximation, filamentation instability in the interaction of high-order Hermite cosh Gaussian laser beam (HchG) and inhomogeneous plasma is studied. By changing the initial light intensity parameters and the non-uniformity of plasma density, the effect o...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Results in Optics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666950123001013 |
| _version_ | 1797733854992138240 |
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| author | Kaijing Tian Xiongping Xia |
| author_facet | Kaijing Tian Xiongping Xia |
| author_sort | Kaijing Tian |
| collection | DOAJ |
| description | Based on high order paraxial theory and WKB approximation, filamentation instability in the interaction of high-order Hermite cosh Gaussian laser beam (HchG) and inhomogeneous plasma is studied. By changing the initial light intensity parameters and the non-uniformity of plasma density, the effect of different mode indices beams propagating in uniform and non-uniform plasmas on self-focusing filamentation structures is investigated. The results show that the HchG laser beam exhibits obvious self-focusing and filamentation phenomena along propagation distance in inhomogeneous plasma under the effect of the ponderomotive force. It is found that the mode index of HchG and plasma inhomogeneity have significant effects on filamentation instability, the higher order mode indices of HchG laser beam can strengthen filamentation instability, and plasma inhomogeneity also can enhance filamentation instability. The results provide a useful theoretical basis for effectively regulating the filamentation instability, increasing the peak laser power and designing narrower pulse width lasers. |
| first_indexed | 2024-03-12T12:35:39Z |
| format | Article |
| id | doaj.art-c7ab2820c3a848bca46725429c4db424 |
| institution | Directory Open Access Journal |
| issn | 2666-9501 |
| language | English |
| last_indexed | 2024-03-12T12:35:39Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Optics |
| spelling | doaj.art-c7ab2820c3a848bca46725429c4db4242023-08-29T04:18:08ZengElsevierResults in Optics2666-95012023-07-0112100449Filamentation instability in the interaction of high-order Hermite cosh Gaussian laser beam and inhomogeneous plasmasKaijing Tian0Xiongping Xia1College of Science, Guilin University of Technology, Guilin 541004, ChinaCorresponding author.; College of Science, Guilin University of Technology, Guilin 541004, ChinaBased on high order paraxial theory and WKB approximation, filamentation instability in the interaction of high-order Hermite cosh Gaussian laser beam (HchG) and inhomogeneous plasma is studied. By changing the initial light intensity parameters and the non-uniformity of plasma density, the effect of different mode indices beams propagating in uniform and non-uniform plasmas on self-focusing filamentation structures is investigated. The results show that the HchG laser beam exhibits obvious self-focusing and filamentation phenomena along propagation distance in inhomogeneous plasma under the effect of the ponderomotive force. It is found that the mode index of HchG and plasma inhomogeneity have significant effects on filamentation instability, the higher order mode indices of HchG laser beam can strengthen filamentation instability, and plasma inhomogeneity also can enhance filamentation instability. The results provide a useful theoretical basis for effectively regulating the filamentation instability, increasing the peak laser power and designing narrower pulse width lasers.http://www.sciencedirect.com/science/article/pii/S2666950123001013HchG laser beamFilamentation instabilitySelf-focusingInhomogeneous plasma |
| spellingShingle | Kaijing Tian Xiongping Xia Filamentation instability in the interaction of high-order Hermite cosh Gaussian laser beam and inhomogeneous plasmas Results in Optics HchG laser beam Filamentation instability Self-focusing Inhomogeneous plasma |
| title | Filamentation instability in the interaction of high-order Hermite cosh Gaussian laser beam and inhomogeneous plasmas |
| title_full | Filamentation instability in the interaction of high-order Hermite cosh Gaussian laser beam and inhomogeneous plasmas |
| title_fullStr | Filamentation instability in the interaction of high-order Hermite cosh Gaussian laser beam and inhomogeneous plasmas |
| title_full_unstemmed | Filamentation instability in the interaction of high-order Hermite cosh Gaussian laser beam and inhomogeneous plasmas |
| title_short | Filamentation instability in the interaction of high-order Hermite cosh Gaussian laser beam and inhomogeneous plasmas |
| title_sort | filamentation instability in the interaction of high order hermite cosh gaussian laser beam and inhomogeneous plasmas |
| topic | HchG laser beam Filamentation instability Self-focusing Inhomogeneous plasma |
| url | http://www.sciencedirect.com/science/article/pii/S2666950123001013 |
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