I-5D optical disk inokugcina i-500 TB yezigidi zeminyaka

Abaphandi kwiYunivesithi yaseSouthampton baye baphuhlisa indlela yokubhala ye-laser ekhawulezayo kunye nowonga amandla ukuvelisa i-nanostructures ephezulu yoxinano kwiglasi ye-silica. Ezi zakhiwo zincinci ingasetyenziselwa ukugcina idatha ye-optical ixesha elide eline-five-dimensional (5D), ngaphezu kwe-10.000 amaxesha axineneyo kune-Blue-Ray optical disk yokugcina iteknoloji.

Olu hlobo lokugcinwa kwedatha lusebenzisa iileya ezintathu amanqaku e-nanoscale kwidiski yeglasi. Ubungakanani, uqhelaniso kunye nendawo (kwimilinganiselo emithathu) yamanqaku inika "imilinganiselo" emihlanu esetyenziselwa ukubethelela idatha.

Ngokwabaphandi, idiski ye-5D isenokufundeka emva kweminyaka eyi-13.8 yeebhiliyoni, kodwa bekuya kumangalisa ukuba kukho umntu owayeza kuyifunda ngelo xesha. Ngexesha elifutshane, i-5D yemidiya ye-optical inokuphila emva kokufudumeza ukuya kwi-1.000 degrees Celsius.

Inkqubo iphuhliswe ngumphandi we-PhD uYuhao Lei usebenzisa i-laser ye-femtosecond izinga lokuphindaphinda eliphezulu. Inkqubo iqala nge-seeding pulse eyenza i-nano vacuum, kodwa i-pulse ekhawulezayo ayifuni ngokwenene ukubhala idatha. I-pulses ephindaphindayo ebuthathaka ixhaphaza into eyaziwa njengophuculo olusondeleyo kwibala lokukrola i-nanostructures ngendlela egudileyo. Abaphandi bavavanya i-laser pulses kumanqanaba ahlukeneyo amandla kwaye bafumana inqanaba elikhawulezayo ukubhala ngaphandle kokonakalisa i-silica glass disc.

Uphononongo lubika ubuninzi bedatha ye-voxels esisigidi ngesekhondi, kodwa isuntswana ngalinye lifuna ii-voxel ezininzi kwiinkqubo ze-5D zamehlo. Oku kulingana nomlinganiselo wedatha omalunga ne-230 kilobytes ngesekhondi. Ngeli xesha, kunokwenzeka ukuba ugcwalise enye yeediski, umthamo wayo uqikelelwa kwi-500 TB. Kuya kuthatha malunga neenyanga ezimbini ukubhala inani elikhulu kangaka ledatha, emva koko ayinakuguqulwa.

Umphandi uYuhao Lei, weYunivesithi yaseSouthampton, UK uthi: "Abantu kunye nemibutho ivelisa iiseti zedatha ezinkulu ngakumbi, idala imfuno engxamisekileyo yogcino lwedatha olunomthamo ophezulu, amandla aphantsi, kunye nobomi obude." "Nangona iinkqubo ezisekelwe kwifu zenzelwe ngakumbi idatha yesikhashana, sikholelwa ukuba ukugcinwa kwedatha ye-5D kwiglasi kunokuba luncedo ekugcinweni kwedatha yexesha elide kwii-archives zelizwe, iimyuziyam, iilayibrari, okanye imibutho yabucala." yongezwa.

Nangona i-5D yokugcinwa kwedatha ye-optical kwizixhobo ezicacileyo ibonakaliswe kwixesha elidlulileyo, kubonisiwe ukuba Kunzima ukubhala idatha ngokukhawuleza ngokwaneleyo kwaye kunye noxinaniso olwaneleyo lwezicelo zehlabathi zokwenyani. Ukoyisa lo mqobo, abaphandi basebenzise izinga eliphezulu lokuphindaphinda i-laser ye-femtosecond ukwenza amaqula amancinci aqulethe isakhiwo esifana ne-nanolamella esilinganisa nje i-500 x 50 nanometers nganye.

Esikhundleni sokusebenzisa i-laser ye-femtosecond ukubhala ngokuthe ngqo kwiglasi, abaphandi basebenzise ukukhanya ukuvelisa i-optical phenomenon eyaziwa ngokuba yi-near-field enhancement, apho i-nanolamella-efana ne-nanolamella iveliswa yi-pulses embalwa ebuthathaka. i-nano vacuum eveliswa kukuqhushumba kwe-pulse enye encinci. Ukusetyenziswa kophuculo olusondeleyo kwintsimi ukwenza i-nanostructures kunciphise umonakalo oshushu oye waba yingxaki kwezinye iindlela zisebenzisa ii-laser eziphinda-phindayo.

Ekubeni i-nanostructures i-anisotropic, ivelisa i-birefringence enokuthi ibonakaliswe ngokuqhelaniswa kwe-axis ecothayo yokukhanya (i-4th dimension, ehambelana nokuqhelaniswa kwesakhiwo se-nano-laminate) kunye namandla okulibazisa (umlinganiselo we-5, ochazwe ngobukhulu be-nanostructure. ). Xa idatha irekhodwa kwiglasi, ukuqhelaniswa kwe-axis ecothayo kunye namandla okulibaziseka kunokulawulwa yi-polarization kunye nokukhanya kokukhanya, ngokulandelanayo.

"Le ndlela entsha iphucula isantya sokubhala idatha ukuya kwinqanaba elisebenzayo, ukwenzela ukuba sibhale amashumi eegigabhayithi zedatha ngexesha elifanelekileyo," kusho uLei. I-nanostructures echanekileyo yendawo ephezulu ivumela umthamo omkhulu wedatha, njengoko ii-voxels ezininzi zingabhalwa kwiyunithi yeyunithi. Ukongezelela, ukusetyenziswa kokukhanya kwe-pulsed kunciphisa amandla afunekayo ukubhala. «

Abaphandi basebenzise indlela yabo entsha yokubhala i-5 gigabytes yedatha yombhalo kwidiski yeglasi. isilica ubukhulu becwecwe eliqhelekileyo lediski, ngokuchaneka kokufunda okuphantse kube yi-100%. I-voxel nganye iqulethe amasuntswana amane olwazi, kwaye zombini iivokseli zihambelana nombhalo omnye. Ngoxinaniso lokubhala olunikezelwa yindlela, idiski inokubamba i-500 terabytes yedatha. Ngohlaziyo lwenkqubo oluvumela ukubhalwa okufanayo, abaphandi bathi kufuneka kwenzeke ukubhala le mali yedatha malunga neentsuku ze-60.

Ngenkqubo yangoku, sinakho ukugcina i-terabytes yedatha, enokusetyenziswa, umzekelo, ukugcina inkcazelo yeDNA yomntu ngoku osebenzela ukwandisa isantya sokubhala kwendlela yakhe nokwenza ubugcisa busetyenziswe ngaphandle kwelabhoratri. Kuya kufuneka kwakhona ukuphuhlisa iindlela ezikhawulezayo zokufunda idatha yezicelo ezisebenzayo zokugcina idatha.

Umthombo: https://www.osapublishing.org/


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