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Access through your institution Buy or subscribe _Phys. Rev. Lett._ 115, 113004 (2015) If you're on the hunt for vortex patterns, you might not think to look at ionized helium. But Jean
Marcel Ngoko Djiokap and colleagues have suggested that ultrafast lasers could stir up beautiful helical vortices in the electron momentum distribution of ionized helium atoms. The trick,
they say, is to use two delayed attosecond laser pulses of opposite circular polarization. This is a preview of subscription content, access via your institution ACCESS OPTIONS Access
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subscriptions * Read our FAQs * Contact customer support Authors * Iulia Georgescu View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS
Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Georgescu, I. Vortex mixer. _Nature Phys_ 11, 800 (2015). https://doi.org/10.1038/nphys3510 Download citation * Published: 01
October 2015 * Issue Date: October 2015 * DOI: https://doi.org/10.1038/nphys3510 SHARE THIS ARTICLE Anyone you share the following link with will be able to read this content: Get shareable
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