Broadband stimulated Raman backscattering

Autor: B Landgraf, B Aurand, G Lehmann, T Gangolf, M Schnell, T Kühl, C Spielmann
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: New Journal of Physics, Vol 18, Iss 7, p 073048 (2016)
Druh dokumentu: article
ISSN: 1367-2630
DOI: 10.1088/1367-2630/18/7/073048
Popis: Broadband amplification employing stimulated Raman backscattering is demonstrated. Using seed pulses with a bandwidth of about 200 nm, we study the amplification in a wide spectral range in a single laser shot. With chirped pump pulses and a Ne gas jet, we observed under optimized conditions, amplification in a range of about 80 nm, which is sufficient to support the amplification of sub-20 fs pulses. This broad amplification range is also in excellent agreement with PIC simulations. The conversion efficiency is at certain wavelengths as high as 1.2% and was measured to be better than 6 × 10 ^−3 on average.
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