The effect of chirp parameter on laser propagation in collisional quantum plasma
This manuscript investigates the effect of the chirp factor on the relativistic self-focusing of a Gaussian chirped pulse laser in collisional quantum plasmas. Nonlinear equations are derived to describe the propagation of a linear chirped laser frequency; afterward, by considering dielectric functi...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Results in Optics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666950122000748 |
| _version_ | 1811190447652995072 |
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| author | Somaye Zare |
| author_facet | Somaye Zare |
| author_sort | Somaye Zare |
| collection | DOAJ |
| description | This manuscript investigates the effect of the chirp factor on the relativistic self-focusing of a Gaussian chirped pulse laser in collisional quantum plasmas. Nonlinear equations are derived to describe the propagation of a linear chirped laser frequency; afterward, by considering dielectric function obtained by quantum kinetic equation and BGK collision integral in coordinate space, evolution differential equations of laser beam width are found; and numerically solved by the fourth-order Runge-Kutta method. It studies oscillations of the beam width along the propagation direction for different values of collision frequency, chirp parameter, plasma density, and laser intensity. Numerical analyses show that a laser beam is defocused after focusing on a definite value; nonetheless, the positive chirp parameter could reduce the defocusing and strengthen the self-focusing in collisional quantum plasma. Also, the higher chirp value leads to a smaller oscillation amplitude and a greater oscillation rate. Furthermore, the self-focusing effect becomes stronger by increasing plasma density and laser intensity. These consequences could be beneficial in the improvement of fast ignition experiments. |
| first_indexed | 2024-04-11T14:51:21Z |
| format | Article |
| id | doaj.art-1149c0a2669e4ed4ab19138afeddf4b1 |
| institution | Directory Open Access Journal |
| issn | 2666-9501 |
| language | English |
| last_indexed | 2024-04-11T14:51:21Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Optics |
| spelling | doaj.art-1149c0a2669e4ed4ab19138afeddf4b12022-12-22T04:17:25ZengElsevierResults in Optics2666-95012022-12-019100284The effect of chirp parameter on laser propagation in collisional quantum plasmaSomaye Zare0Photonics and Quantum Technologies Research School, Nuclear Science and Technology Research Institute, Tehran, IranThis manuscript investigates the effect of the chirp factor on the relativistic self-focusing of a Gaussian chirped pulse laser in collisional quantum plasmas. Nonlinear equations are derived to describe the propagation of a linear chirped laser frequency; afterward, by considering dielectric function obtained by quantum kinetic equation and BGK collision integral in coordinate space, evolution differential equations of laser beam width are found; and numerically solved by the fourth-order Runge-Kutta method. It studies oscillations of the beam width along the propagation direction for different values of collision frequency, chirp parameter, plasma density, and laser intensity. Numerical analyses show that a laser beam is defocused after focusing on a definite value; nonetheless, the positive chirp parameter could reduce the defocusing and strengthen the self-focusing in collisional quantum plasma. Also, the higher chirp value leads to a smaller oscillation amplitude and a greater oscillation rate. Furthermore, the self-focusing effect becomes stronger by increasing plasma density and laser intensity. These consequences could be beneficial in the improvement of fast ignition experiments.http://www.sciencedirect.com/science/article/pii/S2666950122000748Self-focusing effectChirped laser beamQuantum plasmaCollisional plasma |
| spellingShingle | Somaye Zare The effect of chirp parameter on laser propagation in collisional quantum plasma Results in Optics Self-focusing effect Chirped laser beam Quantum plasma Collisional plasma |
| title | The effect of chirp parameter on laser propagation in collisional quantum plasma |
| title_full | The effect of chirp parameter on laser propagation in collisional quantum plasma |
| title_fullStr | The effect of chirp parameter on laser propagation in collisional quantum plasma |
| title_full_unstemmed | The effect of chirp parameter on laser propagation in collisional quantum plasma |
| title_short | The effect of chirp parameter on laser propagation in collisional quantum plasma |
| title_sort | effect of chirp parameter on laser propagation in collisional quantum plasma |
| topic | Self-focusing effect Chirped laser beam Quantum plasma Collisional plasma |
| url | http://www.sciencedirect.com/science/article/pii/S2666950122000748 |
| work_keys_str_mv | AT somayezare theeffectofchirpparameteronlaserpropagationincollisionalquantumplasma AT somayezare effectofchirpparameteronlaserpropagationincollisionalquantumplasma |