Coherent imaging of an attosecond electron wave packet

DOI	Resolve DOI: https://doi.org/10.1126/science.aam8393
Author	Search for: Villeneuve, D. M.¹; Search for: Hockett, Paul¹; Search for: Vrakking, M. J. J.; Search for: Niikura, Hiromichi
Name affiliation	National Research Council Canada. Security and Disruptive Technologies
Format	Text
Type	Article
Journal title	Science
ISSN	0036-8075 1095-9203
Volume	356
Issue	6343
Pages	1150–1153
Abstract	Electrons detached from atoms or molecules by photoionization carry information about the quantum state from which they originate, as well as the continuum states into which they are released. Generally, the photoelectron momentum distribution is composed of a coherent sum of angular momentum components, each with an amplitude and phase. Here we show, by using photoionization of neon, that a train of attosecond pulses synchronized with an infrared laser field can be used to disentangle these angular momentum components. Two-color, two-photon ionization via a Stark-shifted intermediate state creates an almost pure f-wave with a magnetic quantum number of zero. Interference of the f-wave with a spherically symmetric s-wave provides a holographic reference that enables phase-resolved imaging of the f-wave.
Publication date	2017-06-16
Publisher	American Association for the Advancement of Science
Language	English
Peer reviewed	Yes
NPARC number	23002645
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Record identifier	01ceec1f-42a5-43c0-aaab-62dcbf08d0ae
Record created	2017-12-08
Record modified	2017-12-08