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QR code micro-certified gemstones: femtosecond writing and Raman characterization in Diamond, Ruby and Sapphire
This paper reports on a micro-certification procedure using femtosecond laser irradiation to microscopically mark a single-crystalline gemological and natural diamond, synthetic ruby and synthetic sapphire, inscribing a QR Code on them. The QR-code was composed of a set of 25 × 25 micropoints, and t...
| Autores principales: | , , , , |
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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/PMC6586618/ https://www.ncbi.nlm.nih.gov/pubmed/31222126 http://dx.doi.org/10.1038/s41598-019-45405-7 |