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Resonant third harmonic generation of super-Gaussian laser beam in a rippled density plasma | ||
| Journal of Theoretical and Applied Physics | ||
| مقاله 4، دوره 12، شماره 4، اسفند 2018، صفحه 265-270 اصل مقاله (961.66 K) | ||
| شناسه دیجیتال (DOI): 10.1007/s40094-018-0305-0 | ||
| نویسندگان | ||
Lalita Devi؛ Hitendra K. Malik 
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| Plasma Waves and Particle Acceleration Laboratory, Department of Physics, Indian Institute of Technology Delhi | ||
| چکیده | ||
| AbstractResonant third harmonic generation of super-Gaussian laser beam in rippled density plasma is studied. Both the relativistic and ponderomotive nonlinearities are included in the analysis, and the study is done for self-guided laser beam. The quasi-static component of ponderomotive force creates electron density depression in the beam region while the second harmonic component leads to second harmonic density oscillations, leading to third harmonic generation. The relativistic mass variation supplements these processes with same order of contributions. The ripple provides the phase matching and requisite ripple wave number decreases with the frequency of the laser. | ||
| کلیدواژهها | ||
| Third harmonic generation؛ Super؛ Gaussian beams؛ Self guided beams؛ Density ripples؛ Phase matching | ||
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آمار تعداد مشاهده مقاله: 57 تعداد دریافت فایل اصل مقاله: 38 |
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