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
Robert C. Hoffman and Richard S. Potember, "Organometallic materials for erasable optical storage," Appl. Opt. 28, 1417-1421 (1989)