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Organometallic materials for erasable optical storage

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Abstract

An erasable optical storage medium utilizing an AgTCNQ organometallic charge transfer complex has been demonstrated. AgTCNQ films were produced by a vacuum deposition technique in which the donor (Ag) and acceptor (TCNQ°) were reacted in the solid state. High contrast patterns were produced on the material by cw and pulsed Nd:YAG and GaAlAs lasers, and erasure was accomplished by cw Nd:YAG and GaAlAs lasers or bulk heating. Up to fifteen write–erase cycles were observed, with reflectivity increases up to 30% observed in optimum conditions.

© 1989 Optical Society of America

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