ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2025
Electrically Tunable Momentum Space Polarization Singularities in Liquid Crystal Microcavities.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2025. 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.
- Skyrmions in Scalar Fields of Non-Hermitian Optical Microcavities: Spontaneous Formation, Nonlinear Control, and Optical Forces.Nanophotonics (Berlin, Germany) · 2026Article
- Coherent control of optical spin-orbit interactions.Science advances · 2026Article
- Electrically Tunable Momentum Space Polarization Singularities in Liquid Crystal Microcavities.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
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13 authors.
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Abstract
Momentum space polarization singularities of light appear as vectorial twists in the scattered and radiated far field patterns of exotic photonic structures. They relate to important concepts such as bound states in the continuum, spatiotemporal light steering, polarization Möbius strips, Berry curvature, and associated topological photonic phenomena. Polarization singularities, such as completely circularly polarized C-points, are readily designed in real space through interference of differently polarized beams. In momentum space, they require instead sophisticated patterning of photonic crystal slabs of reduced symmetries in order to appear in the corresponding band structure with scarce in situ tunability. Here, it is shown that momentum space singularities can be generated and, importantly, electrically tuned in the band structure of a highly birefringent planar liquid crystal microcavity that retains many symmetries. The results agree with theoretical predictions and offer exciting possibilities for integration of momentum space polarization singularities in spinoptronic technologies.
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