Abstract

The silica gel–methyl methacrylate organically modified ceramic is proposed for recording of volume holograms. Both low-spatial-frequency (54 line pairs/mm−1) and high-spatial-frequency (1400 line pairs/mm−1) holographic gratings were successfully recorded in the medium by interference of two coherent beams of 351.1-nm wavelength. High diffraction efficiencies (93%) and extremely low absorption and scattering coefficients were measured during the holographic reconstruction by a 632.8-nm He–Ne beam. The optimum UV recording exposure was ~3 J cm−2. A grating refractive-index modulation amplitude of 1.1 × 10−4 was achieved. Virtually no changes in diffraction efficiency were observed after thermal-heating, light-curing, and long-term-aging experiments.

© 1996 Optical Society of America

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Corrections

P. Cheben, T. Belenguer, A. Nuñez, F. del Monte, and D. Levy, "Holographic diffraction gratings recording in organically modified silica gels: erratum," Opt. Lett. 22, 193-193 (1997)
https://www.osapublishing.org/ol/abstract.cfm?uri=ol-22-3-193

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