Limit of Angular Compensation Method for Recording Material Shrinkage Effect in Off-Axis Holographic Storage System
JAPANESE JOURNAL OF APPLIED PHYSICS(2010)
Abstract
For an off-axis holographic data storage system using a plane-wave reference beam and angular multiplexing recording, we define alpha(lim), to show the limit of material thickness shrinkage, which is compensable by shifting the read reference beam angle with a mount of Delta theta to prevent the bright pixel intensity of the reconstructed image from becoming lower than a specific threshold I-th. In this work, we systematically analyzed the characteristics of alpha(lim) and corresponding Delta theta for different recording parameters by the first Born approximation of the scalar diffraction theory. (C) 2010 The Japan Society of Applied Physics
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Key words
plane waves,data storage,storage system
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