Study of second harmonic emissions for characterization of laser-plasma X-ray sources
Autori: Giulietti A., Beneduce C., Ceccotti T., Giulietti D., Gizzi LA., Mildren R.
Affiliazione autori: CNR, Ist Fis Atom & Mol, I-56127 Pisa, Italy;
Univ Pisa, Dipartimento Fis, I-56100 Pisa, Italy
Abstract: An investigation of second harmonic (SH) and X-ray emissions from Al plasmas produced by 3-ns, 1.064-mu m laser pulses at 10(14) W/cm(2) is reported. The SH and X-ray yields are strongly correlated as a function of the target position with respect to the laser beam focus. The SH originates from the underdense coronal plasma and has a filamentary source, while the X-ray source is uniform. The results suggest that, although the X-ray emission is significantly enhanced by the filamentation of the laser light in the corona, there is a smoothing effect in the energy transport process toward the overdense region.
Giornale/Rivista: LASER AND PARTICLE BEAMS
Volume: 16 (2) Da Pagina: 397 A: 404
Parole chiavi: 2nd-harmonic emission; filamentation; generationDOI: 10.1017/S0263034600011666Citazioni: 12dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2021-09-19Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui