Coupling holographic volume gratings in glassy polymeric material for planar lightguides

U. V Mahilny; D. N. Marmysh; A. L. Tolstik; V. Matusevich; R. Kowarschik

doi:10.1117/12.622966

30 September 2005 Coupling holographic volume gratings in glassy polymeric material for planar lightguides

U. V Mahilny, D. N. Marmysh, A. L. Tolstik, V. Matusevich, R. Kowarschik

Proceedings Volume 5956, Integrated Optics: Theory and Applications; 59561D (2005) https://doi.org/10.1117/12.622966
Event: Congress on Optics and Optoelectronics, 2005, Warsaw, Poland

Abstract

Efficient and thermally stable volume holographic gratings in glassy polymeric material based on PMMA and phenanthrenequinone have been recorded. Photosensitive layers were prepared by casting the liquid solution of ingredients on a substrate and drying to a solid state followed by a separation of the polymeric film. This technique was applied to create a possibility to write highly slanted gratings between prisms and to stick them to lightguides with glue. High diffractive efficiencies and moderate angle selectivity of the gratings were reached due to a high concentration of phenanthrenequinone (up to 4 mol.%) making it possible to use the photosensitive layers of lower thicknesses (60 - 150 μm) for the recording of the efficient holographic gratings. The exposing is followed by thermal amplification of the grating due to diffusion of unreacted phenanthrenequinone molecules and fixation by an incoherent optical illumination. The processes of generation, amplification and fixation are discussed for holographic gratings. The holographic gratings were written with an Ar-laser (wavelength 514,5 nm). The grating amplification was realized by heating up of the sample to 50-85°C.

Citation Download Citation

U. V Mahilny, D. N. Marmysh, A. L. Tolstik, V. Matusevich, and R. Kowarschik "Coupling holographic volume gratings in glassy polymeric material for planar lightguides", Proc. SPIE 5956, Integrated Optics: Theory and Applications, 59561D (30 September 2005); https://doi.org/10.1117/12.622966

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