全像光子晶體與資訊儲存技術(II)體積全像資訊儲存材料之研製與應用

Abstract

In 1963, by studying properties of volume hologram, P. J. van Heerden mathematically demonstrated that storing optical information in solids has huge potentials of capacity and data rate. In the search for future ”ultra” storage technologies volume holography is therefore considered as a potential candidate. In late 1990s, one can observe intensified research activities concerning various aspects of this field, including the development and theoretical analysis of powerful multiplexing schemes, the availability of suitable recording materials and affordable lasers, modulators, and detectors. Experiments demonstrated the possibilities of 10 TB capacity in a disk and 10 Gb/s data rate. However, for pursuing the commercialization of holographic memories, one of these aspects, suitable volume holographic storage materials, is still an open question. In this paper, we review the progress and challenges of volume holographic data storage and present a methodology for material evaluation. A strategy by using doped photopolymers, PQ/PMMA to fulfill most of material requirements will be proposed and demonstrated.