ArticleNature communications2023
Phonon-enhanced nonlinearities in hexagonal boron nitride.
Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Phonon-Modulated Kerr Nonlinearity in Ultrathin 2Small science · 2026Article
- High-Order Nonlinear Photonic Crystal with Ordered Structures for Giant Enhancement of Frequency Tripling.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Full Crystallographic Imaging of Hexagonal Boron Nitride Monolayers with Phonon-Enhanced Sum-Frequency Microscopy.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Growth of Bulk Hexagonal Boron Nitride from a Lithium Flux.Crystal growth & design · 2025Article
- Roadmap for Photonics with 2D Materials.ACS photonics · 2025Review
- Coherent manipulation of second-harmonic generation via terahertz-field mediated phonon-polariton in zinc oxide.Nature communications · 2025Article
- Highly Tunable Moiré Superlattice Potentials in Twisted Hexagonal Boron Nitrides.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Unzipping hBN with ultrashort mid-infrared pulses.Science advances · 2024Article
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Authors and funding
13 authors.
Funding
Abstract
Polar crystals can be driven into collective oscillations by optical fields tuned to precise resonance frequencies. As the amplitude of the excited phonon modes increases, novel processes scaling non-linearly with the applied fields begin to contribute to the dynamics of the atomic system. Here we show two such optical nonlinearities that are induced and enhanced by the strong phonon resonance in the van der Waals crystal hexagonal boron nitride (hBN). We predict and observe large sub-picosecond duration signals due to four-wave mixing (FWM) during resonant excitation. The resulting FWM signal allows for time-resolved observation of the crystal motion. In addition, we observe enhancements of third-harmonic generation with resonant pumping at the hBN transverse optical phonon. Phonon-induced nonlinear enhancements are also predicted to yield large increases in high-harmonic efficiencies beyond the third.
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