Continuous wave pumped supercontinuum assisted by a weak femtosecond pulse seed
نویسندگان
چکیده
منابع مشابه
Energy and spectral enhancement of femtosecond supercontinuum in a noble gas using a weak seed.
We experimentally demonstrate that the use of a weak seed pulse of energy less than 0.4% of the pump results in a spectral energy enhancement that spans over 2 octaves and a total energy enhancement of more than 3 times for supercontinua generated by millijoule level femtosecond pulses in Krypton gas. Strong four-wave mixing of the pump-seed pulse interacting in the gas is observed. The spectra...
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Numerical simulations are employed to elucidate the physics underlying the enhanced femtosecond supercontinuum generation previously observed during optical filamentation in noble gases and in the presence of a weak seed pulse. Simulations based on the metastable electronic state approach are shown not only to capture the qualitative features of the experiment, but also reveal the relation of t...
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ژورنال
عنوان ژورنال: Journal of Optics
سال: 2018
ISSN: 2040-8978,2040-8986
DOI: 10.1088/2040-8986/aaf2ae