ArticleNanophotonics (Berlin, Germany)2024
Second harmonic generation in monolithic gallium phosphide metasurfaces.
Article in Nanophotonics (Berlin, Germany), 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.
- Harnessing Interfacial Field Localization in Hexagonal GaP Mie Resonators.Nanophotonics (Berlin, Germany) · 2026Article
- Fano interference of photon pairs from a metasurface.Light, science & applications · 2025Article
- New frontiers in nonlinear nanophotonics.Nanophotonics (Berlin, Germany) · 2024Article
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Authors and funding
8 authors.
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Abstract
Gallium phosphide (GaP) offers unique opportunities for nonlinear and quantum nanophotonics due to its wide optical transparency range, high second-order nonlinear susceptibility, and the possibility to tailor the nonlinear response by a suitable choice of crystal orientation. However, the availability of single crystalline thin films of GaP on low index substrates, as typically required for nonlinear dielectric metasurfaces, is limited. Here we designed and experimentally realized monolithic GaP metasurfaces for enhanced and tailored second harmonic generation (SHG). We fabricated the metasurfaces from bulk (110) GaP wafers using electron-beam lithography and an optimized inductively coupled plasma etching process without a hard mask. SHG measurements showed a high NIR-to-visible conversion efficiency reaching up to 10
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