ArticleScience advances2022
Spatially entangled photon pairs from lithium niobate nonlocal metasurfaces.
Article in Science advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.
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Who cites it
41 citing papers in PubMed.
- High-order photonic degeneracy enables topological reconfiguration in bound states in the continuum.Nature communications · 2026Article
- Nonlinear quantum light source with van der Waals ferroelectric NbOXNature communications · 2026Article
- Quasi-BIC and Reflective Mode Coupling Drives SHG Beyond the Q Factor Limit.Small (Weinheim an der Bergstrasse, Germany) · 2026Article
- Voltage-Tunable Nonlocal Metasurface for Enhanced Outcoupling of Emission from Quantum Dots.Nano letters · 2026Article
- Article
- Local-to-Nonlocal Second-Harmonic Generation from Electrically Tunable Intersubband Polaritonic Metasurfaces.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Intensity-asymmetric wavefront shaping in nonlocal meta-lens.Nature communications · 2026Article
- Integrated lithium niobate photonic devices for photonic quantum information science.Nano convergence · 2025Review
- Resonant metasurface-enabled quantum light sources for single-photon emission and entangled photon-pair generation.Nanophotonics (Berlin, Germany) · 2025Article
- Counter-propagating entangled photon pairs from monolayer GaSe.Nature communications · 2025Article
- Review for optical metalens based on metasurfaces: fabrication and applications.Microsystems & nanoengineering · 2025Review
- Fano interference of photon pairs from a metasurface.Light, science & applications · 2025Article
- Enhancement of second-harmonic generation through Brillouin zone folding in a waveguide-coupled metasurface.Nanophotonics (Berlin, Germany) · 2025Article
- Full complex amplitude control of second-harmonic generation via electrically tunable intersubband polaritonic metasurfaces.Science advances · 2025Article
- Nonlinearity symmetry breaking for generating tunable quantum entanglement in semiconductor metasurfaces.Science advances · 2025Article
- Barium titanate and lithium niobate permittivity and Pockels coefficients from megahertz to sub-terahertz frequencies.Nature materials · 2025Article
- Real-Time Programmable Nonlinear Wavefront Shaping with Si Metasurface Driven by Genetic Algorithm.Engineering (Beijing, China) · 2025Article
- Boosting classical and quantum nonlinear processes in ultrathin van der Waals materials.Nature communications · 2025Article
- Switchable narrow nonlocal conducting polymer plasmonics.Nature communications · 2025Article
- Metasurface-assisted multimodal quantum imaging.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Metasurfaces consisting of nanoscale structures are underpinning new physical principles for the creation and shaping of quantum states of light. Multiphoton states that are entangled in spatial or angular domains are an essential resource for many quantum applications; however, their production traditionally relies on bulky nonlinear crystals. We predict and demonstrate experimentally the generation of spatially entangled photon pairs through spontaneous parametric down-conversion from a metasurface incorporating a nonlinear thin film of lithium niobate covered by a silica meta-grating. We measure the correlations of photon pairs and identify their spatial antibunching through violation of the classical Cauchy-Schwarz inequality, witnessing the presence of multimode entanglement. Simultaneously, the photon-pair rate is strongly enhanced by 450 times as compared to unpatterned films because of high-quality-factor resonances. These results pave the way to miniaturization of various quantum devices by incorporating ultrathin metasurfaces functioning as room temperature sources of quantum-entangled photons.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.