Sol-Gel Porous Glass as Holographic Medium |
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| Authors: | V.I. Sukhanov A.M. Kursakova S.A. Kuchinsky E.R. Gavrilyuk T.W. Zerda |
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| Affiliation: | (1) Vavilov State Optical Institute, 1999034 St.-Petersburg, Russia;(2) Physics Department, TCU, 76129 Fort Worth, TX, USA |
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| Abstract: | Experiments on hologram recording in porous structure obtained by the sol-gel technology were performed. It was shown that holograms with a diffraction efficiency close to 100% can be obtained with the exposure of about 0.1 J/cm. A pronounced birefringence was observed in dry samples, but it diminished upon immersion in liquids. To explain this effect, a theoretical model was developed. it was shown that even a low asymmetry in pore structure leads to a pronounced birefringence. |
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| Keywords: | hologram porous structure birefringence |
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