Abstract
We present the observation of a checkerboard-like interference pattern in transverse momentum distributions measured for near-threshold photoionization of hydrogen atoms in a DC electric field. We analyze the pattern in terms of constructive and destructive interference between electron trajectories that directly leave the vicinity of the ion and indirect trajectories that remain in the vicinity of the ion for one or more orbital periods, and show that the interference pattern can be discussed in terms of ionization time delays between these two classes of trajectories.
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Schedule a callMore From: Journal of Physics B: Atomic, Molecular and Optical Physics
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