of 26
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
1/26
PRESENTED TO: PRESENTED BY:VANDANA MAAM AISHWARYA AGRAWAL
ROLL NO. 1445010003
2014- (3RDSEM, .S.!
SHRI RAM MURTI SMARAK WOMENS
COLLEGE OF ENGINEERING &
TECHNOLOGY
1
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
2/26
TECHNICAL SEMINAR ON THE
TOPIC HOLOGRAPHIC MEMORY
2
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
3/26
INDEX
INTRODUCTIONRECORDING DATA
READING DATA
LONGEVITY
TECHNICAL ASPECTS
TWO-COLOUR RECORDING
EFFECT OF ANNEALING
DEVELOPMENT AND MARKETING
CONCLUSION
REFERENCES
3
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
4/26
INTRODUCTION
Holographic data storage is a potentialtechnology in the area of high-capacity. Datastorage is currently dominated by magneticdata storage and conventional optical data
storage. Magnetic and optical data storagedevices rely on individual bits being stored asdistinct magnetic or optical changes on thesurface of the recording medium. Holographicdata storage records information throughoutthe volume of the medium and is capable ofrecording multiple images in the same areautilizing light at dierent angles.
4
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
5/26
HOLOGRAM OF PRINCESS LEIA
5
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
6/26
RECORDING DATA
Holographic data storage containsinformation using an opticalinterference pattern within a thick,photosensitive optical material. ightfrom a single laser beam is divided intotwo separate optical patterns of darkand light pi!els. "y ad#usting thereference beam angle, wavelength, ormedia position, a multitude ofholograms $theoretically, severalthousand% can be stored on a single
volume.
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
7/26!
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
8/26
READING DATA
&he stored data is read through thereproduction of the same reference beamused to create the hologram. &he referencebeam's light is focused on the photosensitive
material, illuminating the appropriateinterference pattern, the light diracts on theinterference pattern, and pro#ects the patternonto a detector. &he detector is capable ofreading the data in parallel, over one millionbits at once, resulting in the fast datatransfer rate. (iles on the holographic drivecan be accessed in less than ).* seconds.
"
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
9/26#
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
10/26
LONGEVITY
Holographic data storage can providecompanies a method to preserve andarchive information.
&he write-once who approach to data
storage would ensure content security,preventing the information from beingoverwritten or modi+ed.
Manufacturers
believe this technologycan provide safe storage for contentwithout degradation for more than )
years.
ounterpoints to this claim are that 1$
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
11/26
/f this trend continues to follow thenthe stored data for )0)) years onone format will be irrelevant, because
one would migrate the data to a newformat only after ten years.However, claimed longevity of storagehas, in the past, proven to be a keyindicator of shorter-term reliability ofstorage media. urrent optical formats such as D have largely lived up to
the original longevity claims $wherereputable media makes are used% andhave proved to be more reliableshorter-term data carriers than the
1oppy disk. 11
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
12/2612
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
13/2613
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
14/26
TECHNICAL ASPECTS%
ike other media, holographic media isdivided into write once and rewritablemedia . 2ewritable holographicstorage can be achieved via the
photorefractive eect in crystals3
14
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
15/26
Mutually coherent light from two sourcescreates an interference pattern in the
media. &hese two sources are called thereference beam and the signal beam.&he faster the rate of recombination, willaect the strength of the hologram.
15
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
16/26
1
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
17/26
TWO-COLOUR RECORDING
1!
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
18/26
4trongly o!idized sample holograms cannotbe easily recorded and the diractione5ciency is very low.
&his is because the shallow trap iscompletely empty and the deep trap is alsoalmost devoid of electrons.&his results in very good sensitivity $fast
recording% and high diraction e5ciencydue to the availability of electrons in theshallow traps. However all the deep trapsget +lled 6uickly and the resultingholograms reside in the shallow traps where
they are totally erased. Hence the diractione5ciency drops to zero and the hologram
stored cannot be +!ed
1"
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
19/26
DEVELOPMENT & MARKETING
1#
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
20/26
7t the 8ational 7ssociation of "roadcasters *))
$87"% convention in as 9egas, /n:haseconducted public demonstrations of the world's+rst prototype of a commercial storage device atthe Ma!ell orporation of 7merica booth.&he three main companies involved in developing
holographic memory, as of *))*, were /n:haseand :olaroid spino 7prilis in the ;nited 4tates,and ?)s,andhas been touted for near-term commercial
application at least since *))0.
2$
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
21/26
VIDEO GAME MARKET
8intendo +led a =oint 2esearch 7greementwith /n:hase for holographic storage in *))@.
8intendo has also mentioned in the patent as
a #oint applicant3 A... disclosure is herein madethat the claimed invention was made pursuantto a =oint 2esearch 7greement as de+ned inB ;.4.. 0)B $c%$B%, that was in eect on or
before the date the claimed invention wasmade, and as a result of activities undertakenwithin the scope of the =oint 2esearch
7greement, by or on the behalf of 8intendoo., and /n:hase &echnologies, /nc.A
21
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
22/26
CONCLUSION
7t the end / would like to say that holographicdata storage is very useful if we see it with the
point of our developing technology, but it is
not a useful invention for the common people.Ces it is true that it is somehow bene+cial forthe industries making movies because as thetechnology is developing people want to see
something new every now and then.4o this invention would create a good impactamong the common people also.
22
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
23/26
23
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
24/26
REFERENCES
Jump up ^Holographic 4torage (irm/n:hase&echnologies 4huts DownE.&elevision "roadcast. (ebruary @, *)0)
Jump up ^FG ;nveils ))-F", Holographic Disc 4torage &echnology. 28. 7pril *, *))>
Jump up ^Aould Holography ure 8intendo's 4torage4pace "luesI 8ewsA. =uly B), *))@.
Jump up ^/nphase &echnologies, /nc.
$ongmont, olorado, ;4% and 8intendo 24
https://en.wikipedia.org/wiki/Holographic_data_storagehttps://en.wikipedia.org/wiki/Holographic_data_storagehttp://www.televisionbroadcast.com/article/94340http://www.televisionbroadcast.com/article/94340http://www.televisionbroadcast.com/article/94340https://en.wikipedia.org/wiki/Holographic_data_storagehttp://www.crn.com/storage/217200230;jsessionid=PCLSSR1JXVD1OQSNDLOSKHSCJUNN2JVNhttp://www.crn.com/storage/217200230;jsessionid=PCLSSR1JXVD1OQSNDLOSKHSCJUNN2JVNhttps://en.wikipedia.org/wiki/Holographic_data_storagehttp://www.totalvideogames.com/Nintendo-Wii/news/Could-Holography-Cure-Nintendo039s-Storage-Space-Blues-13031.htmlhttp://www.totalvideogames.com/Nintendo-Wii/news/Could-Holography-Cure-Nintendo039s-Storage-Space-Blues-13031.htmlhttps://en.wikipedia.org/wiki/Holographic_data_storagehttps://en.wikipedia.org/wiki/Holographic_data_storagehttp://www.totalvideogames.com/Nintendo-Wii/news/Could-Holography-Cure-Nintendo039s-Storage-Space-Blues-13031.htmlhttp://www.totalvideogames.com/Nintendo-Wii/news/Could-Holography-Cure-Nintendo039s-Storage-Space-Blues-13031.htmlhttps://en.wikipedia.org/wiki/Holographic_data_storagehttp://www.crn.com/storage/217200230;jsessionid=PCLSSR1JXVD1OQSNDLOSKHSCJUNN2JVNhttp://www.crn.com/storage/217200230;jsessionid=PCLSSR1JXVD1OQSNDLOSKHSCJUNN2JVNhttps://en.wikipedia.org/wiki/Holographic_data_storagehttp://www.televisionbroadcast.com/article/94340http://www.televisionbroadcast.com/article/94340http://www.televisionbroadcast.com/article/94340https://en.wikipedia.org/wiki/Holographic_data_storagehttps://en.wikipedia.org/wiki/Holographic_data_storage7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
25/26
25
ANY
'UERIES(((
7/23/2019 Holographic Memory-AISHWARYA-C.S. 3RD SEM
26/26
2
THANKYOU)))