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Diffraction Interference Induced Superfocusing in Nonlinear Talbot Effect
We report a simple, novel subdiffraction method, i.e. diffraction interference induced superfocusing in second-harmonic (SH) Talbot effect, to achieve focusing size of less than λ(SH)/4 (or λ(pump)/8) without involving evanescent waves or subwavelength apertures. By tailoring point spread functions...
| Autores principales: | , , , , , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Nature Publishing Group
2014
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4138516/ https://www.ncbi.nlm.nih.gov/pubmed/25138077 http://dx.doi.org/10.1038/srep06134 |