Journal
PHYSICAL REVIEW LETTERS
Volume 107, Issue 21, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.107.213605
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Funding
- EPSRC
- Leibniz society
- Chinese Academy of Sciences [KJCX2.YW.W10]
- GIF [G-1031-17.7/2009]
- Engineering and Physical Sciences Research Council [EP/E036112/1] Funding Source: researchfish
- EPSRC [EP/E036112/1] Funding Source: UKRI
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An attosecond streak camera holds the promise of time resolving the dynamics of photoionization with a few-attosecond accuracy. But can the attosecond measurement be disentangled from the process it measures? We address this question by deriving simple closed-form analytical expressions for the measurement-related apparent time delays in photoionization, associated with the application of the attosecond streak camera and/or resolution of attosecond beating by interference of two-photon transitions techniques. Our analytical results are accurate on about the 1 asec level and show that both intrinsic and measurement-induced delays depend on the same scattering phase and are, therefore, not independent. We also suggest a procedure for extracting intrinsic time delays from the measurement and a possible resolution of the controversy caused by the experiments of Schultze et al. [Science 328, 1658 (2010)].
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