I-attosecond ityhila iimfihlo zokulibaziseka kwexesha

I-attosecond ipelatyhila iimfihlo zokulibaziseka kwexesha
Izazinzulu eUnited States, ngoncedo lwe-astosecond's pulses, ityhile ulwazi olutsha malunga neIfoto yeFowlelectric: Iukuphuma kwefotoUkulibaziseka ukuya kuthi ga kwii-ATTOSTORS ezingama-700, ixesha elide kunokuba bekulindelwe ngaphambili. Imiceli-mngeni yophando yamva nje ekhoyo yemodeli yethiyori kwaye inegalelo ekuqondeni okunzulu konxibelelwano phakathi kwee-elektroni, ezikhokelela ekuphuhlisweni kwetekhnoloji efana ne-semicontue kunye neeseli zelanga.
Iziphumo zefoto zibhekisa kwi-phenomenon apho ukukhanya kukhanya kwimolekyuli okanye i-atom kumphezulu wensimbi, i-photon inxibelelana nemolekyuli okanye i-atom kwaye ikhuphe i-electroni. Esi siphumo asingeyiyo enye yeziseko ezibalulekileyo zendlela yexabiso, kodwa ineempembelelo ezinzulu kwi-profiksi yanamhlanje, i-chemistry kunye nesayensi yezixhobo. Nangona kunjalo, kule ntsimi, ekuthiwa lixesha lokuzimela kwefoto ibe sisihloko sokuphikisana, kwaye iimodeli zethiyori ezahlukeneyo ziye zayicacisa iidigri ezahlukeneyo, kodwa azikho mthethweni.
Njengoko intsimi ye-Astosecond yesayensi iphucule kakhulu kwiminyaka yakutshanje, esi sixhobo sivelayo sinikezela ngendlela engazange ibonwe ngaphambili yokuphonononga ilizwe lemicroscopic. Ngokulinganisa ngokuthe ngqo kwiminyhadala yenzeka kwisikali sexesha esifutshane kakhulu, abaphandi bayakwazi ukufumana ulwazi olungaphezulu malunga nokuziphatha okunamandla kwamasuntswana. Kwisifundo samva nje, basebenzisa uthotho lwe-X-ray rances-ray-ray oqingqiweyo eveliswe nguMthombo wokukhanya onobuhlobo kwiZiko leStanford Line.
Ukuqhubela phambili ukuhlalisa i-trajectories yezi zelo ze-elektroni ezikhutshwayo, zasebenzisa ngokukodwaI-Laser ipelaUkulinganisa amaxesha okukhutshwa kwee-elektroni kwiindlela ezahlukeneyo. Le ndlela ibavumele ukubala ngokuchanekileyo umahluko obonakalayo phakathi kwamaxesha ahlukeneyo obangelwe yintsebenzo phakathi kwe-elektroni, eqinisekisa ukuba ukulibaziseka okunokufikelela kwii-Atytonds ezingama-700. Kufanelekile ukuba uqaphele ukuba le nto ayifumaniyo kuphela i-hypotheses yangaphambili, kodwa iphakamisa imibuzo emitsha, ukwenza iinkolelo ezifanelekileyo kufuneka ziphinde zivavanywe kwaye zihlaziywe.
Ukongeza, isifundo sibonisa ukubaluleka kokulinganisa nokutolika ngoku kulibaziseka kwexesha, ekubaluleke kakhulu ekuqondeni iziphumo zovavanyo. Kwi-protestalblographlography-protestallography, ingcinga yonyango, kunye nezinye izicelo ezibalulekileyo ezibandakanya ukusebenzisana kwee-X-rays ezinemicimbi, ezi datha ziya kuba sisiseko esibalulekileyo sokuphucula iindlela zobugcisa kunye nokuphucula umgangatho wokucinga. Ke ngoko, iqela liceba ukuqhubeka nokuphonononga amandla e-elektroniki yeentlobo ngeentlobo zeemolekyuli ukuze kubonakale ulwazi oluntsonkothileyo kwiindlela ze-molekshini zophuhliso lwetekhnoloji enxulumene nexesha elizayo.