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Metasurface-assisted phase-matching-free second harmonic generation in lithium niobate waveguides
The phase-matching condition is a key aspect in nonlinear wavelength conversion processes, which requires the momenta of the photons involved in the processes to be conserved. Conventionally, nonlinear phase matching is achieved using either birefringent or periodically poled nonlinear crystals, whi...
| Autores principales: | , , , , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Nature Publishing Group UK
2017
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5727391/ https://www.ncbi.nlm.nih.gov/pubmed/29235473 http://dx.doi.org/10.1038/s41467-017-02189-6 |