Abstract
Tunable multicolor femtosecond pulses were simultaneously obtained by a cascaded four-wave mixing process in a fused-silica glass plate. Frequency up-shift and down-shift pulses with energies of about 1 μJ and durations of 45 fs sidebands were obtained. When one of the two input beams was negatively chirped and the other was positively chirped, self-compressed multicolor 20 fs pulses, which were nearly transform limited, were obtained.
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Kobayashi, T., Liu, J. Multicolor femtosecond laser with μJ level by cascaded four-wave mixing. OPT REV 17, 282–284 (2010). https://doi.org/10.1007/s10043-010-0049-9
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DOI: https://doi.org/10.1007/s10043-010-0049-9