Abacwaningi eNyuvesi yaseSouthampton benze indlela yokubhala ye-laser esheshayo futhi iyonga amandla ukukhiqiza ama-nanostructures aphezulu kakhulu engilazini ye-silica. Lezi zakhiwo ezincane ingasetshenziswa ukugcina idatha yokubona ubude besikhathi eside obuyi-five-dimensional (5D), buminyene izikhathi ezingaphezu kweziyi-10.000 kunobuchwepheshe bokugcina i-Blue-Ray optical disc.
Lolu hlobo lokugcina idatha lusebenzisa izendlalelo ezintathu amaphuzu we-nanoscale kudiski yengilazi. Usayizi, umumo nendawo (ebukhulu obuthathu) bamaphuzu kunikeza "ubukhulu" obuhlanu obusetshenziselwa ukubhala idatha.
Ngokusho kwabaphenyi, idiski ye-5D ingase ifundeke ngemva kweminyaka eyizigidi eziyizinkulungwane ezingu-13.8, kodwa kungamangaza uma kukhona owayesazoyifunda ngaleso sikhathi. Esikhathini esifushane, imidiya ye-5D optical nayo ingasinda ngemva kokushiswa ibe ngu-1.000 degrees Celsius.
Inqubo eyakhiwe umcwaningi we-PhD u-Yuhao Lei usebenzisa i-laser ye-femtosecond izinga lokuphindaphinda eliphezulu. Inqubo iqala nge-seeding pulse eyenza i-nano vacuum, kodwa ukushaya okusheshayo akudingi ukubhala idatha. Ama-pulses abuthakathaka aphindaphindiwe asizakala ngento eyaziwa ngokuthi i- near-field enhancement ukuze ibaze izakhiwo ze-nano ngendlela ebushelelezi. Abacwaningi bahlole ama-laser pulses kumazinga ahlukene wamandla futhi bathola izinga elisheshisa ukubhala ngaphandle kokulimaza i-silica glass disk.
Ucwaningo lubika isilinganiso esiphezulu sedatha sama-voxel ayisigidi ngesekhondi, kodwa ibhithi ngalinye lidinga ama-voxel amaningana kumasistimu okubonayo e-5D. Lokhu kulingana nezinga ledatha cishe elingamakhilobhayithi angama-230 ngomzuzwana. Kuleli qophelo, kungenzeka ukugcwalisa enye yamadiski, amandla awo alinganiselwa ku-500 TB. Kungathatha cishe izinyanga ezimbili ukubhala inani elikhulu kangaka ledatha, ngemva kwalokho ayikwazanga ukushintshwa.
"Abantu nezinhlangano bakhiqiza amasethi edatha amakhudlwana, okwenza kube nesidingo esikhulu sezinhlobo ezisebenza kahle kakhulu zokugcina idatha ezinomthamo omkhulu, ukusetshenziswa kwamandla aphansi nokuphila isikhathi eside," kusho umcwaningi u-Yuhao Lei, wase-University of Southampton, e-UK. "Nakuba amasistimu asekelwe kumafu eklanyelwe kakhulu idatha yesikhashana, sikholelwa ukuthi ukugcinwa kwedatha ye-5D engilazini kungaba usizo ekugcinweni kwedatha yesikhathi eside yezingobo zomlando zikazwelonke, iminyuziyamu, imitapo yolwazi, noma izinhlangano ezizimele." kwengeza.
Nakuba ukugcinwa kwe-optical yedatha ye-5D ezintweni ezibonakalayo kuye kwaboniswa esikhathini esidlule, kukhonjisiwe lokho kunzima ukubhala idatha ngokushesha ngokwanele futhi nokuminyana okwanele kwezinhlelo zokusebenza zomhlaba wangempela. Ukuze banqobe lesi sithiyo, abacwaningi basebenzise izinga eliphezulu lokuphindaphinda i-laser ye-femtosecond ukuze bakhe imithombo emincane equkethe isakhiwo esifana ne-nanolamella esilinganisa nje ama-nanometer angu-500 x 50 lilinye.
Kunokuba basebenzise i-laser ye-femtosecond ukuze babhale ngokuqondile engilazini, abacwaningi basebenzise ukukhanya ukuze bakhiqize into eyaziwa ngokuthi i-near-field enhancement, lapho isakhiwo esifana ne-nanolamella sikhiqizwa ama-pulses ambalwa abuthakathaka. i-nano vacuum ekhiqizwa ukuqhuma okukodwa kwe-pulse micro. Ukusetshenziswa kwesithuthukisi esiseduze kwenkundla ukwenza ama-nanostructures kunciphise umonakalo oshisayo obe yinkinga kwezinye izindlela kusetshenziswa ama-laser aphindaphinda imvamisa ephezulu.
Njengoba ama-nanostructures eyi-anisotropic, akhiqiza i-birefringence engabonakala ngokuma kwe-eksisi ehamba kancane yokukhanya (ubukhulu be-4, obuhambisana nokuma kwesakhiwo se-nanolaminate) namandla okulibaziseka (ubukhulu be-5, obuchazwe usayizi we-nanostructure). Uma idatha irekhodwa engilazini, umumo we-eksisi ehamba kancane namandla okulibaziseka kungalawulwa yi-polarization kanye nokuqina kokukhanya, ngokulandelanayo.
"Le ndlela entsha ithuthukisa isivinini sokubhala idatha ezingeni elisebenzayo, ukuze sikwazi ukubhala amashumi ama-gigabytes edatha ngesikhathi esifanele," kusho uLei. I-nanostructures yokunemba yendawo ephezulu ivumela umthamo wedatha omkhulu, njengoba ama-voxels amaningi angabhalwa ngevolumu yeyunithi. Ngaphezu kwalokho, ukusetshenziswa kokukhanya kwe-pulsed kunciphisa amandla adingekayo okubhala. «
Abacwaningi basebenzisa indlela yabo entsha ukuze babhale ama-gigabytes angu-5 wedatha yombhalo kudiski yengilazi. i-silica usayizi we-compact disc evamile, ngokunemba kokufunda okucishe kube ngu-100%. I-voxel ngayinye ibiqukethe izingcezu ezine zolwazi, futhi womabili ama-voxel afane nohlamvu olulodwa lombhalo. Ngobuningi bokubhala obunikezwa indlela, idiski ingabamba idatha engama-terabytes angu-500. Ngezibuyekezo zesistimu ezivumela ukubhala okufanayo, abacwaningi bathi kufanele kwenzeke ukubhala leli nani ledatha cishe ezinsukwini ezingu-60.
Ngohlelo lwamanje, sinamandla okugcina idatha yama-terabytes, engasetshenziswa, isibonelo, ukulondoloza imininingwane ye-DNA yomuntu manje osebenzela ukwandisa ijubane lokubhala lendlela yakhe nokwenza ubuchwepheshe busetshenziswe ngaphandle kwendawo yokucwaninga. Kuzodingeka futhi ukuthi kusungulwe izindlela ezisheshayo zokufunda idatha yezinhlelo zokusebenza ezisebenzayo zokugcina idatha.
Umthombo: https://www.osapublishing.org/