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Tunable high harmonics from nanorings swirled by intense optical vortices

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Abstract

Irradiating a system of intercalated ring by optical vortices generates a circulating charge flow that emits high harmonic bursts whose characteristic frequencies and time structures are totally controllable by the winding number of the driving vortex beam. This is a direct consequence of the transfer of the photon’s orbital angular momentum to matter and the tunneling of the photo-induced orbital magnetic momentum between the rings.

© 2018 The Author(s)

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