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Proceedings Paper

Fabrication and testing of holographic gratings
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Paper 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.

Paper Details

Date Published: 26 October 2004
PDF: 12 pages
Proc. SPIE 5521, Organic Holographic Materials and Applications II, (26 October 2004); doi: 10.1117/12.560495
Show Author Affiliations
Michael R. Gleeson, Univ. College Dublin (Ireland)
Ciara E. Close, Univ. College Dublin (Ireland)
Feidhlim T. O'Neill, Univ. College Dublin (Ireland)
John T. Sheridan, Univ. College Dublin (Ireland)

Published in SPIE Proceedings Vol. 5521:
Organic Holographic Materials and Applications II
Klaus Meerholz, Editor(s)

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