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. 2011 Apr 8;106(14):143002.
doi: 10.1103/PhysRevLett.106.143002. Epub 2011 Apr 5.

Probing single-photon ionization on the attosecond time scale

K Klünder  1 , J M Dahlström, M Gisselbrecht, T Fordell, M Swoboda, D Guénot, P Johnsson, J Caillat, J Mauritsson, A Maquet, R Taïeb, A L'Huillier
Affiliations

Probing single-photon ionization on the attosecond time scale

K Klünder et al. Phys Rev Lett. .

Erratum in

  • Phys Rev Lett. 2011 Apr 22;106(16):169904

Abstract

We study photoionization of argon atoms excited by attosecond pulses using an interferometric measurement technique. We measure the difference in time delays between electrons emitted from the 3s(2) and from the 3p(6) shell, at different excitation energies ranging from 32 to 42 eV. The determination of photoemission time delays requires taking into account the measurement process, involving the interaction with a probing infrared field. This contribution can be estimated using a universal formula and is found to account for a substantial fraction of the measured delay.

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