Share Email Print

Proceedings Paper

Thermoplastic media for holographic data storage
Author(s): Xiaolei Shi; Brian Lawrence; Marc Dubois; Eugene P. Boden; Christoph Erben; Kathryn L. Longley; Matthew C. Nielsen
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

The growing prevalence of digital technologies has led to increased data generation so that new storage technologies must be developed to handle expanding capacity demand. Holographic data storage is a very promising candidate with the potential to provide ultra-high density data storage. Currently, many teams are developing holographic storage technology, with much of the emphasis on professional archival applications. However, consumer-oriented applications are also growing rapidly and the requirements for these applications are different from those for professional archival storage. In particular, a holographic medium for consumer applications must be simple, cheap, and easy to process. In addition, where content distribution is the intended application, the medium must also be compatible with mastering and replication processes. We present a new holographic medium designed to meet the requirements of consumer oriented applications. The media is based on thermoplastic materials that are modified by the inclusion of photo-chemically active dyes. A series of 0.6 and 1.2 mm thick discs were injection molded and characterized for holographic storage capacity and sensitivity. The first series of samples showed large refractive index modulations of 0.03 but a poor sensitivity of 0.1 cm/J. Analysis of the data showed that the low sensitivity limited the usable capacity of the media to M/# values of ~1. A new series of dyes were synthesized with optimized efficiency and injection molded in 1.2 mm substrates. These substrates demonstrated comparable usable capacity but with significantly increased sensitivities. The results of the measurements of the injection-molded thermoplastic media are presented.

Paper Details

Date Published: 1 September 2005
PDF: 10 pages
Proc. SPIE 5939, Organic Holographic Materials and Applications III, 59390A (1 September 2005); doi: 10.1117/12.621412
Show Author Affiliations
Xiaolei Shi, GE Global Research (United States)
Brian Lawrence, GE Global Research (United States)
Marc Dubois, Lockheed Martin Aeronautics (United States)
Eugene P. Boden, GE Global Research (United States)
Christoph Erben, GE Global Research (United States)
Kathryn L. Longley, GE Global Research (United States)
Matthew C. Nielsen, GE Global Research (United States)

Published in SPIE Proceedings Vol. 5939:
Organic Holographic Materials and Applications III
Klaus Meerholz, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?