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 lokugcinwa kwe-5-dimensional (10.000D), ngaphezu kwe-XNUMX amaxesha axineneyo kune-Blue-Ray optical disk yokugcina iteknoloji.
Olu hlobo logcino lwedatha lusebenzisa iileya ezintathu amachaphaza nanoscale kwidiski yeglasi. Ubungakanani, ukuqhelaniswa, kunye nendawo (kwimilinganiselo emithathu) yamanqaku anika "imilinganiselo" emihlanu esetyenziselwa ukubethelela idatha.
Ngokwabaphandi, idiski ye-5D isenokufundwa emva kweminyaka eyi-13.8 yeebhiliyoni, kodwa bekuya kumangalisa ukuba kukho nabani na okhoyo oza 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-nanovoid, kodwa i-pulse ekhawulezayo ayifuni ngokwenene ukubhala idatha. I-pulse ephinda-phindayo ebuthathaka ixhaphaza into eyaziwa njengokwandiswa kwebala elikufutshane ukuze kuqingqwe i-nanostructures ngendlela ethambileyo. Abaphandi bavavanya i-laser pulses kumanqanaba ahlukeneyo amandla kwaye bafumana inqanaba elikhawulezayo ukubhala ngaphandle kokonakalisa i-silica glass disc.
Uphononongo lubika ubuninzi bezinga ledatha yesigidi esinye se-voxels ngomzuzwana, kodwa isuntswana ngalinye lifuna iivoxel ezininzi kwiinkqubo zamehlo ze-5D. 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.
"Abantu kunye nemibutho bavelisa iiseti zedatha ezikhulayo, okwenza imfuno enzima yokugcinwa kwedatha efanelekileyo kunye nomthamo ophezulu, ukusetyenziswa kwamandla aphantsi kunye nexesha elide lokuphila," kusho umphandi uYuhao Lei, weYunivesithi yaseSouthampton, eUnited Kingdom. "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." , Wongezelela.
Nangona ukugcinwa kwe-optical yedatha ye-5D kwizinto ezibonakalayo zibonakalisiwe kwixesha elidlulileyo, kubonisiwe ukuba kunzima ukubhala idata ngokukhawuleza ngokwaneleyo kwaye kuxinene ngokwaneleyo usetyenziso lwehlabathi lokwenyani. Ukoyisa lo mqobo, abaphandi basebenzise i-laser ye-femtosecond yokuphindaphinda ephezulu ukwenza imingxuma emincinci enesakhiwo esifana ne-nanolamella-efana ne-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 ngama-pulses ambalwa abuthathaka. i-nano vacuum eyenziwe yi-pulse microexplosion enye. Ukusetyenziswa kophuculo olukufutshane nentsimi ukwenza i-nanostructures kunciphise umonakalo oshushu oye waba yingxaki kwezinye iindlela kusetyenziswa iilaser zokuphindaphinda izinga eliphezulu.
Ekubeni i-nanostructures i-anisotropic, ivelisa i-birefringence enokuthi ibonakaliswe ngokuqhelaniswa kwe-axis ecothayo yokukhanya (i-4th dimension, ehambelana nokuqhelaniswa kwesakhiwo ngendlela ye-nanolaminate) kunye namandla okulibaziseka (i-5th dimension; ichazwe ngobungakanani be-nanostructure). Xa idatha irekhodwa kwiglasi, ukuqhelaniswa kwe-axis ecothayo kunye namandla okulibaziseka kunokulawulwa yi-polarization kunye nokuqina kokukhanya, ngokulandelanayo.
"Le ndlela entsha iphucula isantya sokubhala idatha kwizinga elisebenzayo, ngoko sinokubhala amashumi eegigabytes zedatha ngexesha elifanelekileyo," kusho uLei. I-nanostructures echanekileyo yendawo ephezulu yenza umthamo omkhulu wedatha, njengoko ii-voxels ezininzi zinokubhalwa kumthamo weyunithi. Ukongezelela, ukusetyenziswa kokukhanya kwe-pulsed kunciphisa amandla afunekayo ekubhaleni. «
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. Ngoxinaniso lokubhala olunikezelwa yindlela, idiski inokuqulatha 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. Iindlela ezikhawulezayo zokufunda idatha nazo ziya kufuneka ziphuhliswe kwizicelo ezisebenzayo zokugcina idatha.
Umthombo: https://www.osapublishing.org/