Risultati scientifici

Observation of solid-density laminar plasma transparency to intense 30 femtosecond laser pulses

Anno: 1997

Autori: Giulietti D., Gizzi LA., Giulietti A., Macchi A., Teychenne D., Chessa P., Rousse A., Cheriaux G., Chambaret JP., Darpentigny G.

Affiliazione autori: CNR,Ist. Fis. Atom. & Mol., via giardino 7, I-56127 Pisa, Italy; ENSTA, Lab Opt Appliquee, F-91120 Palaiseau, France; Univ Pisa, Dipartimento Fis, Pisa, Italy; Scuola Normale Superiore di Pisa, Pisa, Italy

Abstract: Near total transmission of 30 fs laser pulses through 0.1 mu m plastic foil targets has been observed for the first time at an intensity of 3 x 10(18) W/cm(2) in absence of precursor plasma. This level of transmittivity is far above the level predicted by current theoretical models or numerical simulations. The transmittivity was found to drop by 40 times at an intensity of 4 x 10(17) W/cm(2) and was within the experimental background level at 5 x 10(16) W/cm(2). Our measurements strongly suggest a new mechanism of propagation of electromagnetic waves through overdense plasmas.


Volume: 79 (17)      Da Pagina: 3194  A: 3197

Parole chiavi: 2nd harmonic emission; target;
DOI: 10.1103/PhysRevLett.79.3194

Citazioni: 70
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2021-09-19
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