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Proceedings Paper

Bit-error-rate issues for holographic data storage in bacteriorhodopsin films
Author(s): John D. Downie; Dogan A. Timucin; Charles K. Gary; Meric Oezcan; Daniel Tod Smithey; Marshall Crew
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Paper Abstract

Photochromic films made from bacteriorhodopsin (BR) possess many desirable characteristics for a candidate holographic optical data storage medium. These properties include optical erasability, high spatial resolution, adequate diffraction efficiency, flexible film formats, durability, an optimal recording/readout wavelength of about 680 - 690 nm, and potentially inexpensive cost. In this paper, we experimentally study the raw bit-error-rate (BER) achievable with BR films made from the genetic variant known as D85N. Experimental data is collected for digital bit patterns fabricated as chrome-on- glass masks, at two different spatial resolutions. The results show that films fabricated from D85N have good potential for use in holographic data storage systems, but that further effort must be devoted to the film fabrication process in order to minimize optical nonuniformity and scattering losses.

Paper Details

Date Published: 5 November 1998
PDF: 11 pages
Proc. SPIE 3468, Advanced Optical Memories and Interfaces to Computer Storage, (5 November 1998); doi: 10.1117/12.330418
Show Author Affiliations
John D. Downie, NASA Ames Research Ctr. (United States)
Dogan A. Timucin, NASA Ames Research Ctr. (United States)
Charles K. Gary, NASA Ames Research Ctr. (United States)
Meric Oezcan, NASA Ames Research Ctr. (United States)
Daniel Tod Smithey, Bend Research, Inc. (United States)
Marshall Crew, Bend Research, Inc. (United States)


Published in SPIE Proceedings Vol. 3468:
Advanced Optical Memories and Interfaces to Computer Storage
Pericles A. Mitkas; Zameer U. Hasan, Editor(s)

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