Abstract
Photorefractive materials are the key materials in future lightwave manipulation systems based on real-time holography. Typical photorefractive materials are ferroelectric crystals, such as BaTiO3 and KNbO3. These crystalline materials have a unique set of principal axes, and must be used in bulk form. Therefore they require very careful growth and processing before they can be used. For this reason there has been excitement by the recent development of new organic materials which can be easily made into thin films, and after poling exhibit photorefractive properties.
© 1997 Optical Society of America
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