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| Format: | Artículo científico |
| Language: | en |
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Sociedad Mexicana de Física A.C.
2006
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| Online Access: | https://www.redalyc.org/articulo.oa?id=57065008 |
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| _version_ | 1866558279496237056 |
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| author | T. J. M. Boyd |
| author_facet | T. J. M. Boyd |
| contents | Density structure in low-order harmonic emission from laser-plasma interactions T. J. M. Boyd R. Ondarza-Rovira Física, Astronomía y Matemáticas Laser plasma interaction high harmonic generation Multiple harmonic generation from intense laser light incident on dense plasma targets is well-established. Both the number of harmonics generated and the corresponding power in each is strongly dependent on the intensity of the incident light. In this paper, attention is focusedon an aspect of harmonic generation that has hitherto been largely overlooked, namely its dependence on plasma density. In particular weshow that the conversion efficiencies of odd harmonics generated for normally incident light are strongly resonant in character, the numberof resonances increasing with harmonic order. In addition to this resonant behaviour, the reflected power in low-order harmonics is further complicated by plasma emission at plasma resonant densities. Only at densities well above the resonances does the radiated harmonic power decay monotonically with density. The density dependence predicted by theory for low-order harmonics is confirmed by particle-in-cell simulations. 2006 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57065008 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.2 Vol.52 |
| format | Artículo científico |
| id | redalyc_57065008 |
| language | en |
| publishDate | 2006 |
| publisher | Sociedad Mexicana de Física A.C. |
| spellingShingle | Density structure in low-order harmonic emission from laser-plasma interactions T. J. M. Boyd Física, Astronomía y Matemáticas Laser plasma interaction high harmonic generation Density structure in low-order harmonic emission from laser-plasma interactions T. J. M. Boyd R. Ondarza-Rovira Física, Astronomía y Matemáticas Laser plasma interaction high harmonic generation Multiple harmonic generation from intense laser light incident on dense plasma targets is well-established. Both the number of harmonics generated and the corresponding power in each is strongly dependent on the intensity of the incident light. In this paper, attention is focusedon an aspect of harmonic generation that has hitherto been largely overlooked, namely its dependence on plasma density. In particular weshow that the conversion efficiencies of odd harmonics generated for normally incident light are strongly resonant in character, the numberof resonances increasing with harmonic order. In addition to this resonant behaviour, the reflected power in low-order harmonics is further complicated by plasma emission at plasma resonant densities. Only at densities well above the resonances does the radiated harmonic power decay monotonically with density. The density dependence predicted by theory for low-order harmonics is confirmed by particle-in-cell simulations. 2006 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57065008 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.2 Vol.52 |
| title | Density structure in low-order harmonic emission from laser-plasma interactions |
| topic | Física, Astronomía y Matemáticas Laser plasma interaction high harmonic generation |
| url | https://www.redalyc.org/articulo.oa?id=57065008 |