We present the results of direct interferometric measurements on the pulse-to-pulse phase jitter of a metrological, fiber-based, infrared (IR) frequency comb. We show that the short-time evolution of such phase fluctuations, which cannot be actively controlled by any feedback system, imposes a stringent limit on the tooth linewidth of extreme ultraviolet (XUV) combs produced by high-order harmonic conversion, thus explaining the difference of 9 orders of magnitude between the coherence times of state-of-the-art IR and XUV frequency combs
Ultimate Limit in the Spectral Resolution of Extreme Ultraviolet Frequency Combs / Corsi, C.; Liontos, I.; Bellini, M.; Cavalieri, S.; Cancio Pastor, P.; Siciliani De Cumis, M.; Eramo, R.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 118:(2017), pp. 1432011-1432015. [10.1103/PhysRevLett.118.143201]
Ultimate Limit in the Spectral Resolution of Extreme Ultraviolet Frequency Combs
CORSI, CHIARA;LIONTOS, IOANNIS;CAVALIERI, STEFANO;SICILIANI DE CUMIS, MARIO;ERAMO, ROBERTO
2017
Abstract
We present the results of direct interferometric measurements on the pulse-to-pulse phase jitter of a metrological, fiber-based, infrared (IR) frequency comb. We show that the short-time evolution of such phase fluctuations, which cannot be actively controlled by any feedback system, imposes a stringent limit on the tooth linewidth of extreme ultraviolet (XUV) combs produced by high-order harmonic conversion, thus explaining the difference of 9 orders of magnitude between the coherence times of state-of-the-art IR and XUV frequency combsFile | Dimensione | Formato | |
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