Necklace-structured high-harmonic generation for low-divergence, soft x-ray harmonic combs with tunable line spacing
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Abstract |
The extreme nonlinear optical process of high-harmonic generation (HHG) makes it possible to map the properties of a laser beam onto a radiating electron wave function and, in turn, onto the emitted x-ray light. Bright HHG beams typically emerge from a longitudinal phased distribution of atomic-scale quantum antennae. Here, we form a transverse necklace-shaped phased array of linearly polarized HHG emitters, where orbital angular momentum conservation allows us to tune the line spacing and divergence properties of extreme ultraviolet and soft x-ray high-harmonic combs. |
Year of Publication |
2022
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Date Published |
2022-02
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Journal Title |
Science Advances
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Volume |
8
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Issue |
5
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ISSN Number |
2375-2548
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DOI | |
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