Bencivenga Filippo, Capotondi Flavio, Casolari Francesco, Dallari Francesco, Danailov Miltcho B, De Ninno Giovanni, Fausti Daniele, Kiskinova Maya, Manfredda Michele, Masciovecchio Claudio, Pedersoli Emanuele
Elettra-Sincrotrone Trieste S.C.p.A., S.S. 14 km 163,5 in AREA Science Park, I-34149, Basovizza, Trieste, Italy.
Faraday Discuss. 2014;171:487-503. doi: 10.1039/c4fd00100a. Epub 2014 Aug 13.
We report on new opportunities for ultrafast science thanks to the use of two-colour extreme ultraviolet (XUV) pulses at the FERMI free electron laser (FEL) facility. The two pulses have been employed to carry out a pioneering FEL-pump/FEL-probe diffraction experiment using a Ti target and tuning the FEL pulses to the M(2/3)-edge in order to explore the dependence of the dielectric constant on the excitation fluence. The future impact that the use of such a two-colour FEL emission will have on the development of ultrafast wave-mixing methods in the XUV/soft X-ray range is addressed and discussed.
我们报告了在费米自由电子激光（FEL）设施中使用双色极紫外（XUV）脉冲为超快科学带来的新机遇。这两个脉冲已被用于使用钛靶开展开创性的FEL泵浦/FEL探测衍射实验，并将FEL脉冲调谐到M（2/3）边缘，以探索介电常数对激发通量的依赖性。本文探讨并讨论了这种双色FEL发射在XUV/软X射线范围内对超快波混频方法发展的未来影响。
