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

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

doi:10.1364/OE.24.001447

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

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

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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 language	English
Pages (from-to)	1447-1462
Number of pages	16
Journal	Optics Express
Volume	24
Issue number	2
DOIs	https://doi.org/10.1364/OE.24.001447
Publication status	Published - 25 Jan 2016

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abstract = "A customized CO2 laser micromachining system was used forthe generation of phase holographic structures directly on the surface of fused silica (HPFS{\textregistered}7980 Corning) and Borofloat{\textregistered}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.",

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AU - Wlodarczyk, Krystian Lukasz

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AU - Hand, Duncan Paul

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N2 - 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.

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DO - 10.1364/OE.24.001447

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JO - Optics Express

JF - Optics Express

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

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