QR code micro-certified gemstones: femtosecond writing and Raman characterization in Diamond, Ruby and Sapphire

Diamond photonics platform enabled by femtosecond laser writing

Raman spectra measured at the top surface of graphitic columns

PDF) QR code micro-certified gemstones: femtosecond writing and Raman characterization in Diamond, Ruby and Sapphire

QR coding diamonds with precision femtosecond-laser technology

A novel approach for audible acoustic quick response codes

This matched pair of blue sapphires (3.07 and 3.10 ct) were heat

PDF] APPLICATION OF MICRO-RAMAN SPECTROSCOPY FOR GEMSTONES CHARACTERIZATION . THE CASE OF RUBIES

Proton beam irradiation induces invisible modifications under the surface of painted parchment

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