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Proceedings Article

CROP holographic storage media for optical data storage greater than 100 bits/μm2

[+] Author Affiliations
David A. Waldman, Christopher J. Butler, Daniel H. Raguin

Aprilis, Inc. (USA)

Proc. SPIE 5216, Organic Holographic Materials and Applications, 10 (December 10, 2003); doi:10.1117/12.513614
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From Conference Volume 5216

  • Organic Holographic Materials and Applications
  • Klaus Meerholz
  • San Diego, California, USA | August 03, 2003

abstract

Aprilis HMD-050-G-C-400 photopolymerizable holographic recording material for card and disk media, based upon cationic ring-opening polymerization (CROP), has been further optimized for recording in an increased film thickness of 400 ´m. A storage density, S2D, of 150 bits/μm2 for digital data recorded holographically as pages and a dynamic range of at least M/# = 22 have been achieved, which are substantially greater than previously reported for photopolymerizable media, while concurrently the inherent low shrinkage, high image fidelity and high sensitivity characteristics of the material have been retained. Dynamic range or cumulative grating strength, Σηi 0.5, has been determined from co-locationally recorded peristrophic and planar-angle multiplexed 262 kbit data pages that exhibit low raw bit-error-rates (BER) having an average value of 1E-3 and 5.5E-3 for ~100 and ~150 bits/μm2, respectively. Good Bragg selectivity consistent with the imaged thickness and sinc2 function behavior is observed for the multiplexed digital data page holograms, and both the Bragg selectivity and the diffraction efficiency are stable without the need for post-imaging fixing procedures. Sensitivity during recording of digital data page holograms is in the range of 6.75 cm/mJ diminshing to 0.5 cm/mJ for 87% of the cumulative grating strength that is attained during co-locational recording.

© (2003) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

David A. Waldman ; Christopher J. Butler and Daniel H. Raguin
"CROP holographic storage media for optical data storage greater than 100 bits/μm2", Proc. SPIE 5216, Organic Holographic Materials and Applications, 10 (December 10, 2003); doi:10.1117/12.513614; http://dx.doi.org/10.1117/12.513614


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