3-D MEMORY STORAGE TECHNOLOGY
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Presented By
S.ANJANEYULU

[attachment=10556]
 To increase data storage capacity by using the space within the crystal that is been used in 1-D and 2-D storage device.
 To get less susceptible to hacking,data theft problem and data loss due to external strain.
 Speed retrieval,transfer and search of data.
 Accurate reference of required address within a crystal with page of information.
 To avoid multiple read/write head complexity.
 The process for encoding data onto the signal beam is accomplished by a device called a spatial light modulator (SLM).
 The SLM translate the electronics data of 0’s and 1’s into an optical “checkerboard” pattern of light and dark pixels.
 Light from a single laser beam is split into two beams, the signal which carries the data and the reference beam.
HOW IT WORKS?
 First there is an urgent need of translating electronic code of 0’s and 1’s to light beam of light and dark pixel pattern.
 So the above work is done through SLM and storage medium.
 Here the intersection of both light beam from SLM on crystal cause to form holograms into the bulk of the crystal.
Read/Write Head
Performance and Advantages

 Maximum data storage limits we have reached today 15.9G.B on a double-layer, doubled sided DVD.180 GB on hard disk.
 Whereas this system that can store about a terabyte of information (that’s over 15,000 CDs!) on the crystal the size of a sugar cube!
 The multi-layer system is optically transparent and homogeneous .
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