22 September 1997 Holographic gratings in photorefractive polymers without external electric field
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Using anomalous large diffusion we report a recording of reflection type gratings in a PVK-based photorefractive polymer without any external electric field. Diffraction efficiency of the gratings was measured to be 7%. An efficient modulation of beams during two-beam coupling up to 12% was demonstrated by using phase mutilation technique. This practical scheme can be used in dynamic vibration measurements.
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Nickolai V. Kukhtarev, Sergei F. Lyuksyutov, Preben Buchhave, Boris L. Volodin, "Holographic gratings in photorefractive polymers without external electric field", Proc. SPIE 3137, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications III, (22 September 1997); doi: 10.1117/12.287777; https://doi.org/10.1117/12.287777

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