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Photorefractive Polymer Provides High Optical Gain and Long Lifetime

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Michael D. Wheeler

SAN DIEGO -- Scientists have unveiled a durable, optically efficient polymer that improves on several years of research toward an inexpensive photorefractive material. Moreover, they have demonstrated its use as an efficient phase conjugated mirror, one in a long list of applications for such a material. The commercial potential has prompted many researchers to develop inexpensive, organic polymers with the same photorefractive properties as their more expensive crystal counterparts. Those properties include optical gain: When a scientist directs two laser beams into a photorefractive...Read full article

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    Published: September 1997
    Glossary
    astronomy
    The scientific observation of celestial radiation that has reached the vicinity of Earth, and the interpretation of these observations to determine the characteristics of the extraterrestrial bodies and phenomena that have emitted the radiation.
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