scholarly journals A Review of the Optimisation of Photopolymer Materials for Holographic Data Storage

2012 ◽  
Vol 2012 ◽  
pp. 1-16 ◽  
Author(s):  
Jinxin Guo ◽  
Michael R. Gleeson ◽  
John T. Sheridan

Photopolymers are very interesting as optically sensitive recording media due to the fact that they are inexpensive, self-processing materials with the ability to capture low-loss, high-fidelity volume recordings of 3D illuminating patterns. We have prepared this paper in part in order to enable the recognition of outstanding issues, which limit in particular the data storage capacity in holographic data storage media. In an attempt to further develop the data storage capacity and quality of the information stored, that is, the material sensitivity and resolution, a deeper understanding of such materials in order to improve them has become ever more crucial. In this paper a brief review of the optimisation of photopolymer materials for holographic data storage (HDS) applications is described. The key contributions of each work examined and many of the suggestions made for the improvement of the different photopolymer material discussed are presented.

Author(s):  
Mingliang Pan ◽  
Yi Zhong ◽  
Hui Lin ◽  
Hongran Bao ◽  
Lulu Zheng ◽  
...  

Persistent luminescence phosphors are regarded as one of the promising candidates for optical storage media. However, most optical storages using phosphors can only realize single-bit-data recording, limiting the storage capacity....


Author(s):  
C. Erben ◽  
Xiaolei Shi ◽  
E. Boden ◽  
K.L. Longley ◽  
B. Lawrence ◽  
...  

Author(s):  
Boris Sovetov ◽  
Tatiana Tatarnikova ◽  
Ekaterina Poymanova

Introduction: The implementation of data storage process requires timely scaling of the infrastructure to accommodate the data received for storage. Given the rapid accumulation of data, new models of storage capacity management are needed, which should take into account the hierarchical structure of the data storage, various requirements for file storage and restrictions on the storage media size. Purpose: To propose a model for timely scaling of the storage infrastructure based on predictive estimates of the moment when the data storage media is fully filled. Results: A model of storage capacity management is presented, based on the analysis of storage system state patterns. A pattern is a matrix each cell of which reflects the filling state of the storage medium at an appropriate level in the hierarchical structure of the storage system. A matrix cell is characterized by the real, limit, and maximum values of its carrier capacity. To solve the scaling problem for a data storage system means to predict the moments when the limit capacity and maximum capacity of the data carrier are reached. The difference between the predictive estimatesis the time which the administrator has to connect extra media. It is proposed to calculate the values of the predictive estimates programmatically, using machine learning methods. It is shown that when making a short-term prediction, machine learning methods have lower accuracy than ARIMA, an integrated model of autoregression and moving average. However, when making a long-term forecast, machine learning methods provide results commensurate with those from ARIMA. Practical relevance: The proposed model is necessary for timely allocation of storage capacity for incoming data. The implementation of this model at the storage input allows you to automate the process of connecting media, which helps prevent the loss of data entering the system.


2009 ◽  
Vol 19 (22) ◽  
pp. 3560-3566 ◽  
Author(s):  
Kyongsik Choi ◽  
James W. M. Chon ◽  
Min Gu ◽  
Nino Malic ◽  
Richard A. Evans

1997 ◽  
Vol 7 (9) ◽  
pp. 1731-1735
Author(s):  
Dieter Franzke ◽  
Hansruedi Gygax ◽  
Alois Renn ◽  
Urs P. Wild ◽  
Heinz Wolleb ◽  
...  

1999 ◽  
Vol 24 (7) ◽  
pp. 487 ◽  
Author(s):  
Lisa Dhar ◽  
Arturo Hale ◽  
Howard E. Katz ◽  
Marcia L. Schilling ◽  
Melinda G. Schnoes ◽  
...  

2007 ◽  
Author(s):  
Christoph Erben ◽  
Xiaolei Shi ◽  
Eugene Boden ◽  
Kathryn L. Longley ◽  
Brian Lawrence ◽  
...  

2007 ◽  
Author(s):  
Christoph Erben ◽  
Xiaolei Shi ◽  
Eugene P. Boden ◽  
Kathryn L. Longley

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