"Pushing the NOPA to New Frontiers: Output to Below 400 nm, MHz Operation and ps Pump Duration"M. Bradler, K. Lamia, P. Baum, and E. Riedle
K. Yamanouchi et al. (eds.), Ultrafast Phenomena XIX, Springer Proceedings in Physics 162, 757 - 760 (2015).
Two sub-ps MHz range Yb-based lasers are used to pump NOPAs at 343 nm. A SHG driven supercontinuum allows tuning down to 395 nm. For a 1 ps pump, supercontinuum seeding is still applicable, the pulses are compressed to the 20 fs regime with a potential for sub-10 fs duration.
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