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1篇 您的检索式：作者名="Alberto Simoncig"

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		题名	作者	年代	出处	被引量
	1	Non-linear self-driven spectral tuning of Extreme Ultraviolet Femtosecond Pulses in monoatomic materials显示文摘Self-action nonlinearity is a key aspect either as a foundational element or a detrimental factor of several optical spectroscopies and photonic devices.Supercontinuum generation,wavelength converters,and chirped pulse amplification are just a few examples.The recent advent of Free Electron Lasers(FEL)fostered building on nonlinearity to propose new concepts and extend optical wavelengths paradigms for extreme ultraviolet(EUV)and X-ray regimes.No evidence for intrapulse dynamics,however,has been reported at such short wavelengths,where the light-matter interactions are ruled by the sharp absorption edges of core electrons.Here,we provide experimental evidence for self-phase modulation of femtosec ond FEL pulses,which we exploit for fine self-driven spectral tun ability by interaction with sub-micrometric foils of selected monoatomic materials.Moving the pulse wavelength across the absorption edge,the spectral profile changes from a non-linear spectral blue-shift to a red-shifted broadening.These findings are rationalized account!ng for ultrafast ionization and delayed thermal response of highly excited electrons above and below threshold,respectively.	Carino Ferrante Emiliano Principi Andrea Marini Giovanni Batignani Giuseppe Fumero Alessandra Virga Laura Foglia Riccardo Mincigrucci Alberto Simoncig Carlo Spezzani Claudio Masciovecchio Tullio Scopigno	2021	Light(Science & Applications)2021，10，6：	0

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