Nearly bandwidth-limited mid-infrared pulses as short as 110 fs are generated by phasematched difference frequency mixing within the broad spectrum of 20 fs Ti:sapphire pulses in GaSe.
CITATION STYLE
Kaindl, R. A., Smith, D. C., Joschko, M., Hasselbeck, M. P., Woerner, M., & Elsaesser, T. (1998). Generation of high repetition rate femtosecond infrared pulses tunable from 9 to 18 μm. Springer Series in Chemical Physics, 63, 66–68. https://doi.org/10.1007/978-3-642-72289-9_19
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