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Holographic colour prints for enhanced optical security by combined phase and amplitude control
Conventional optical security devices provide authentication by manipulating a specific property of light to produce a distinctive optical signature. For instance, microscopic colour prints modulate the amplitude, whereas holograms typically modulate the phase of light. However, their relatively sim...
Autores principales: | Lim, Kevin T. P., Liu, Hailong, Liu, Yejing, Yang, Joel K. W. |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6318302/ https://www.ncbi.nlm.nih.gov/pubmed/30604762 http://dx.doi.org/10.1038/s41467-018-07808-4 |
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