Holographic Removable Disc Drive

8/8/2019 Holographic Removable Disc Drive

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HOLOGRAPHIC REMOVABLE DISC DRIVE

PRESENTED BY:

SUNNY SHARMA(JMIT , Radaur)AKHIL BHUTANI(MMEC,Mullana)


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INTRODUCTION:

The New Data Storage Frontier will be 3 D

Volume Rewritable Atomic HolographicRemovable Disk Drives.

Future 10 Terabytes to 10 Petabytes andFuture 10 Terabytes to 10 Petabytes andBeyond Rewritable Atomic HolographicBeyond Rewritable Atomic HolographicDisk Drive TechnologyDisk Drive Technology


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Holographic

StorageHolographic Storage is an optical

technology that allows 1 million bitsof data to be written and read out insingle flashes of light. Thousands of

Holograms can be stored in the samelocation throughout the entire depth

of the medium.


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HOLOGRAM:

It has a very unique feature, namely, any small part of themedium contains information about the image.

ADVANTAGES:

Resistance to damage - If some parts of the medium aredamaged, all information can still be obtained from other

parts.Efficient retrieval - All information can be retrieved from

any part of the medium


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S TORAGE CAPACITY:S TORAGE CAPACITY:

6,840 raw uncompressed high quality6,840 raw uncompressed high qualityVideo/TV hoursVideo/TV hours2 ,100,000 chest x2 ,100,000 chest x- -rays , rays , nearly 10,000,000 highnearly 10,000,000 high--resolutionresolutionimages , images , 30,000 four 30,000 four--drawer filing cabinets of drawer filing cabinets of documentsdocuments20,000 DVD'S Worm's20,000 DVD'S Worm's4,000 BLU4,000 BLU--Ray Worm disk's , Ray Worm disk's , 100 100 -- 100 gigabyte disk drives on ONE 10100 gigabyte disk drives on ONE 10Terabyte 3.5 in. removable disc.Terabyte 3.5 in. removable disc.


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Why to use Rewritable Atomic Holograp h ic Optical Storage Device

1 .) Lo1 .) Lowest cost per gigabytewest cost per gigabyte2.) Lowest power requirement per gigabyte2.) Lowest power requirement per gigabyte

3.) Highest data bit density of any storage device3.) Highest data bit density of any storage device4 .) Widest environmental conditions and tolerances4 .) Widest environmental conditions and tolerances5.) Only technology that scales from nano to macro solutions5.) Only technology that scales from nano to macro solutions6 .) Most reliable removable read / write media available6 .) Most reliable removable read / write media available7.)7.) Storage solution with a 100 year shelf Storage solution with a 100 year shelf- -life.life.8 .)8 .) Fast data transfer rates ( 10 's to 100 's of MBytes/second).Fast data transfer rates ( 10 's to 100 's of MBytes/second).9.) A non9.) A non- -contact recording nanotechnology for increasedcontact recording nanotechnology for increased

reliabilityreliability10 .) Will NOT have storage media destroyed by10 .) Will NOT have storage media destroyed by

Infrared ,Visible , or Ultraviolet LightInfrared ,Visible , or Ultraviolet Light


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Holograp h ic Storage Mec hanism:

Holography breaks through the density limits of conventional storage by going beyond recording

only on the surface, to recording through the fulldepth of the medium. Unlike other technologies thatrecord one data bit at a time, holography allows amillion bits of data to be written and read in parallel

with a single flash of light. This enables transfer rates significantly higher than current optical storagedevices .


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Storage Media

The media is fabricated from mixtures of two

independently polymerizable yet compatiblechemical systems. Recording disks are formed byan polymerization of one of the components toform the matrix or support of the medium.Theother component , which is photosensitive , remains unreacted and dissolved in this matrix .


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How is data recorded?

Light from a single laser beam is split into two beams,the signal beam (which carries the data) and

the reference beam. The hologram is formed wherethese two beams intersect in the recording medium.

At the point of intersection of the reference beam and the data carrying signal beam, the

hologram is recorded in the light sensitive storagemedium. A chemical reaction occurs in the mediumwhen the bright elements of the signal beam intersectthe reference beam, causing the hologram stored.


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HO W IS DATA READ?

In order to read the data, the reference beam deflects

off the hologram thus reconstructing the storedinformation. This hologram is then projected onto adetector that reads the data in parallel. This parallelread out of data provides holography with its fast

transfer rates.


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THANK YOU

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