Three-dimensional memory based on birefringent polymeric materials

Winston Ho; Gajendra D. Savant; Jay Hirsh; Tomasz P. Jannson

doi:10.1117/12.983232

2 February 1993 Three-dimensional memory based on birefringent polymeric materials

Winston Ho, Gajendra D. Savant, Jay Hirsh, Tomasz P. Jannson

Proceedings Volume 1773, Photonics for Computers, Neural Networks, and Memories; (1993) https://doi.org/10.1117/12.983232
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

A polarization vectorial holographic recording medium has been investigated for the development of high performance three-dimensional optical memory storage architectures. The approach has been to fully characterize the molecular and bulk properties of the polarization vectorial holographic (PVH) recording medium, and to optimize material performance for memory applications. Response time, write/read/erase speed, and fatigue of the PVH medium have been dramatically improved. The response time has been reduced to 80 μs. No material fatigue has been observed in over one million read/write/erase cycles. We also demonstrated high-speed (< 1 kHz) write/read/erase cycling. These improvements are the result of a detailed investigation of the molecular photophysics which allowed the optimization of material and recording parameters.

Citation Download Citation

Winston Ho, Gajendra D. Savant, Jay Hirsh, and Tomasz P. Jannson "Three-dimensional memory based on birefringent polymeric materials", Proc. SPIE 1773, Photonics for Computers, Neural Networks, and Memories, (2 February 1993); https://doi.org/10.1117/12.983232

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