Multiplexed microholograms for optical data storage

Hans Joachim Eichler; Susanna Orlic; Peter Kuemmel; Benjamin Schupp

doi:10.1117/12.349323

1 June 1999 Multiplexed microholograms for optical data storage

Hans Joachim Eichler, Susanna Orlic, Peter Kuemmel, Benjamin Schupp

Proceedings Volume 3633, Diffractive and Holographic Technologies, Systems, and Spatial Light Modulators VI; (1999) https://doi.org/10.1117/12.349323
Event: Optoelectronics '99 - Integrated Optoelectronic Devices, 1999, San Jose, CA, United States

Abstract

An optical disk system has been proposed that stores the bit-formatted data in three dimensions as microscopic reflection holograms in a thin photosensitive layer. Each microhologram represents one bit. High storage densities can be achieved by combining multiplexing methods and multilayer storage. A theoretical model for microholographic gratings generated by two focused counterpropagating Gaussian beams predicts high values of diffraction efficiency, more than 95% for single microhologram. Physical principles of microholographic storage have been experimentally verified. This article reports on recording and characterization of microholograms in DuPont HRF-800 photopolymers.

Citation Download Citation

Hans Joachim Eichler, Susanna Orlic, Peter Kuemmel, and Benjamin Schupp "Multiplexed microholograms for optical data storage", Proc. SPIE 3633, Diffractive and Holographic Technologies, Systems, and Spatial Light Modulators VI, (1 June 1999); https://doi.org/10.1117/12.349323

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