Reaching the nonlinear regime of Raman amplification of ultrashort laser pulses.
Phys Rev Lett
; 94(4): 045003, 2005 Feb 04.
Article
em En
| MEDLINE
| ID: mdl-15783565
ABSTRACT
The intensity of a subpicosecond laser pulse was amplified by a factor of up to 1000 using the Raman backscatter interaction in a 2 mm long gas jet plasma. The process of Raman amplification reached the nonlinear regime, with the intensity of the amplified pulse exceeding that of the pump pulse by more than an order of magnitude. Features unique to the nonlinear regime such as gain saturation, bandwidth broadening, and pulse shortening were observed. Simulation and theory are in qualitative agreement with the measurements.
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Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2005
Tipo de documento:
Article