Abstract
The features of Raman backscattering of laser pulses in a wedge-shaped jet plasma with a significant density gradient are analyzed. The possibility of compensating for an excessively large pumping chirp due to the use of density inhomogeneity along the gas jet is shown. In this case, Raman compression occurs without a significant loss of energy efficiency. The possibility of obtaining a high-energy output signal using wide-aperture laser pulses in a wedge-shaped plasma is demonstrated. The optimal parameters of the gas jet and laser pulses are determined to ensure high efficiency and focusability, which is close to the ideal case.The features of Raman backscattering of laser pulses in a wedge-shaped jet plasma with a significant density gradient are analyzed. The possibility of compensating for an excessively large pumping chirp due to the use of density inhomogeneity along the gas jet is shown. In this case, Raman compression occurs without a significant loss of energy efficiency. The possibility of obtaining a high-energy output signal using wide-aperture laser pulses in a wedge-shaped plasma is demonstrated. The optimal parameters of the gas jet and laser pulses are determined to ensure high efficiency and focusability, which is close to the ideal case.
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