High Harmonic Generation with Twisted Electrons

We present analytically and numerically the spectrum of high harmonic emission generated by twisted electrons in the presence of linearly polarized light. Ensuing transitions from electronic continuum states with orbital angular momentum to bound states give rise to circularly polarized attosecond p...

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Bibliographic Details
Published inarXiv.org
Main Authors Gemsheim, Sebastian, Jan-Michael Rost
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 02.09.2019
Subjects
Angular momentum
Attosecond pulses
Circular polarization
Collisions
Crossovers
Dipoles
Electrons
Emission analysis
Harmonic generations
Linear polarization
Physics - Atomic Physics
Polarized light
Topology
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Summary:We present analytically and numerically the spectrum of high harmonic emission generated by twisted electrons in the presence of linearly polarized light. Ensuing transitions from electronic continuum states with orbital angular momentum to bound states give rise to circularly polarized attosecond pulses. For central collisions with twisted wavepackets continuum-bound transitions are subject to dipole selection rules. For non-central collisions a crossover from circularly to linearly polarized emission occurs for increasing impact parameter, due to the transverse topology of twisted wavepackets.
Bibliography:SourceType-Working Papers-1
ObjectType-Working Paper/Pre-Print-1
content type line 50
ISSN:2331-8422
DOI:10.48550/arxiv.1909.00728