Fabrication and testing of holographic gratings

Michael R. Gleeson; Ciara E. Close; Feidhlim T. O'Neill; John T. Sheridan

doi:10.1117/12.560495

26 October 2004 Fabrication and testing of holographic gratings

Michael R. Gleeson, Ciara E. Close, Feidhlim T. O'Neill, John T. Sheridan

Proceedings Volume 5521, Organic Holographic Materials and Applications II; (2004) https://doi.org/10.1117/12.560495
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

Holographic and diffractive optical elements (D.O.E.’s) have a variety of engineering applications. However, the availability of an inexpensive, self-processing, environmentally stable material with good spatial frequency response is crucial for further development in successful applications of holography. A number of different materials are currently being examined. In this paper we examine an Acrylamide-based photopolymer recording material, as it is one of the promising materials currently available. The material is self-processing and can be sensitised to different recording wavelengths using a dye. The self-processing capability simplifies the recording and testing processes and enables holographic interferometry to be carried out without the need for complex realignment procedures. The material requires further improvement as it has a number of limitations, e.g. it has a poor spatial frequency response range (500-2500 l/mm). The improvement of this material will require bulk testing of the material. Therefore a LabView controlled automated fabrication and testing system was developed. Arrays of D.O.E.’s were recorded in the Acrylamide based photopolymer material using the automated system and the refractive index modulation and the thickness of the grating were extracted.

Citation Download Citation

Michael R. Gleeson, Ciara E. Close, Feidhlim T. O'Neill, and John T. Sheridan "Fabrication and testing of holographic gratings", Proc. SPIE 5521, Organic Holographic Materials and Applications II, (26 October 2004); https://doi.org/10.1117/12.560495

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