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Generation of wavelength-independent subwavelength Bessel beams using metasurfaces
Bessel beams are of great interest due to their unique non-diffractive properties. Using a conical prism or an objective paired with an annular aperture are two typical approaches for generating zeroth-order Bessel beams. However, the former approach has a limited numerical aperture (NA), and the la...
| Autores principales: | , , , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Nature Publishing Group
2017
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6062187/ https://www.ncbi.nlm.nih.gov/pubmed/30167252 http://dx.doi.org/10.1038/lsa.2016.259 |