Reaching the Nonlinear Regime of Raman Amplification of Ultrashort Laser Pulses | Zendy

Wei Cheng | Zendy; Yoav Avitzour | Zendy; Y. Ping | Zendy; S. Suckewer | Zendy; N. J. Fisch | Zendy; Min Sup Hur | Zendy; J. S. Wurtele | Zendy

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Reaching the Nonlinear Regime of Raman Amplification of Ultrashort Laser Pulses

Author(s) -

Wei Cheng,

Yoav Avitzour,

Y. Ping,

S. Suckewer,

N. J. Fisch,

Min Sup Hur,

J. S. Wurtele

Publication year - 2005

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.94.045003

Subject(s) - raman amplification , ultrashort pulse , laser , optics , raman spectroscopy , raman scattering , pulse (music) , materials science , saturation (graph theory) , doppler broadening , nonlinear system , chirped pulse amplification , bandwidth (computing) , nonlinear optics , physics , atomic physics , spectral line , mathematics , combinatorics , astronomy , quantum mechanics , detector , computer network , computer science

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.open695

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