Document Type

Article

Rights

Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence

Disciplines

1.3 PHYSICAL SCIENCES, Optics, Polymer science

Publication Details

Optics Express vol 26 No. 7

https://www.osapublishing.org/oe/home.cfm

Abstract

A method for fabricating diffractive holographic optical diffusers is reported, allowing a high degree of control of the resulting diffuser characteristics. The method consists of recording a laser speckle pattern using a single carrier beam, with controlled speckle size and shape, in an acrylamide-based volume photopolymer. The multiple interferences that create the speckle pattern form the hologram. Results are presented verifying the diffusers are volume holographic in nature and the speckle pattern is recorded accurately in the photopolymer. Diffusers recorded by this method are analysed to characterise the optical performance of the diffusers and to illustrate their beam-shaping capabilities, particularly in producing asymmetric beam outputs.

DOI

https://doi.org/10.1364/OE.26.008916

Funder

Enterprise Ireland

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