Direct CO2 laser-based generation of holographic structures on the surface of glass

Krystian Lukasz Wlodarczyk, Nick J. Weston, Marcus Ardron, Duncan Paul Hand

Research output: Contribution to journalArticle

14 Citations (Scopus)
502 Downloads (Pure)

Abstract

A customized CO2 laser micromachining system was used forthe generation of phase holographic structures directly on the surface of fused silica (HPFS®7980 Corning) and Borofloat®33 (Schott AG) glass. This process used pulses of duration 10μs and nominal wavelength10.59μm. The pulse energy delivered to the glass workpiece was controlled by an acousto-optic modulator. The laser-generated structures were optically smooth and crack free. We demonstrated their use as diffractive optical elements (DOEs), which could be exploited as anti-counterfeiting markings embedded into valuable glass-made components and products.
Original languageEnglish
Pages (from-to)1447-1462
Number of pages16
JournalOptics Express
Volume24
Issue number2
DOIs
Publication statusPublished - 25 Jan 2016

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