Phase Measurement of a Fano Resonance Using Tunable Attosecond PulsesReportar como inadecuado

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1 Universidad Autonoma de Madrid Madrid 2 Department of Physics 3 Department of Synchrotron Radiation Research 4 Stockholm University 5 APSU - Atomic Physics 6 LCPMR - Laboratoire de Chimie Physique - Matière et Rayonnement 7 IFIMAC - Condensed Matter Physics Center 8 Instituto IMDEA Nanociencia Madrid

Abstract : We study photoionization of argon atoms close to the 3s23p6 → 3s13p64p Fano resonance using an attosecond pulse train and a weak infrared probe field. An interferometric technique combined with tunable attosecond pulses allows us to determine the phase of the photoionization amplitude as a function of photon energy. We interpret the experimental results using an analytical two-photon model based on the Fano formalism and obtain quantitative agreement.

Autor: A Jiménez-Galánz - M Kotur - D Guénot - D Kroon - E W Larsen - M Louisy - S Bengtsson - M Miranda - J Mauritsson - C L Arnold



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