ArticleScience advances2024
High-harmonic spin-orbit angular momentum generation in crystalline solids preserving multiscale dynamical symmetry.
Article in Science advances, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Non-cascade random walks in solid-state high harmonic generation.Nature communications · 2026Article
- Light structuring via nonlinear total angular momentum addition with flat optics.Light, science & applications · 2025Article
- High power, dual SWIR-MIR OPCPA source for high-order harmonics generation.Scientific reports · 2025Article
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Authors and funding
5 authors.
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Abstract
Symmetries essentially provide conservation rules in nonlinear light-matter interactions and facilitate control and understanding of photon conversion processes or electron dynamics. Since anisotropic solids have rich symmetries, they are strong candidates for controlling both optical micro- and macroscale structures, namely, spin angular momentum (circular polarization) and orbital angular momentum (spiral wavefront), respectively. Here, we show structured high-harmonic generation linked to the anisotropic symmetry of a solid. By strategically preserving a dynamical symmetry arising from the spin-orbit interaction of light, we generate multiple orbital angular momentum states in high-order harmonics. The experimental results exhibit the total angular momentum conservation rule of light even in the extreme nonlinear region, which is evidence that the mechanism originates from a dynamical symmetry. Our study provides a deeper understanding of multiscale nonlinear optical phenomena and a general guideline for using electronic structures to control structured light, such as through Floquet engineering.
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