Itekhnoloji kunye neendlela zophuhliso lwe-laser ye-attosecond e-China
I-Institute of Physics, i-Chinese Academy yeSayensi, ibike iziphumo zokulinganisa ze-160 njenge-attosecond pulses eyedwa ngo-2013. I-attosecond pulses eyedwa (IAPs) yeli qela lophando yenziwe ngokusekelwe kwi-harmonics ye-high-order eqhutywa yi-sub-5 femtosecond laser pulses ezinzisiweyo nge-repetiz repetiz ye-CEP. Iimpawu zexeshana ze-attosecond pulses zibonakaliswe yi-attosecond stretch spectroscopy. Iziphumo zibonisa ukuba le beamline inokubonelela ngeempuphu ze-attosecond ezizimeleyo kunye nobude be-pulse ye-160 attoseconds kunye ne-wavelength ephakathi ye-82eV. Iqela lenze impumelelo kwi-attosecond source generation kunye ne-attosecond stretching spectroscopy technology. Imithombo yokukhanya okugqithisileyo kwe-ultraviolet enesisombululo se-attosecond nayo iya kuvula iindawo ezintsha zesicelo se-fiziksi yomcimbi. Kwi-2018, i-Institute of Physics, i-Academy yaseShayina yeSayensi, iphinde ichaze isicwangciso sokwakha isixhobo somsebenzisi sokulinganisa ixesha esine-cross-disciplinary ultrafast esidibanisa imithombo yokukhanya ye-attosecond kunye neeterminals ezahlukeneyo zokulinganisa. Oku kuya kwenza ukuba abaphandi baqhube i-attosecond eguquguqukayo ukuya kwi-femtosecond imilinganiselo esonjululwe lixesha leenkqubo ezikhawulezayo kwimiba, ngelixa zikwanazo nesisombululo esinamandla kunye nesithuba. Kwaye ivumela abaphandi ukuba baphonononge kwaye balawule i-microscopic ultrafast dynamics kwi-athomu, iimolekyuli, umphezulu kunye nemathiriyeli eyomeleleyo. Oku ekugqibeleni kuya kuvula indlela yokuqonda kunye nokusetyenziswa kweziganeko zemacroscopic ezifanelekileyo ezibandakanya iinkalo ezininzi zophando ezifana nefiziksi, ikhemistri kunye nebhayoloji.
Ngo-2020, iYunivesithi yaseHuazhong yeSayensi kunye neTekhnoloji yenza isindululo sokusetyenziswa kwendlela yokubona yonke into ukulinganisa ngokuchanekileyo kunye nokwakha ngokutsha i-attosecond pulses ngokusebenzisa itekhnoloji ye-optical gating esonjululwe rhoqo. Ngo-2020, iAkhademi yaseTshayina yeSayensi iphinde yaxela ukuba ivelise ngempumelelo i-atosecond pulses ngokubumba indawo yombane we-femtosecond pulse ngokusetyenziswa kwetekhnoloji yokukhanya okumbini ekhethiweyo yokudlula. Ngo-2023, iqela elivela kwiYunivesithi yeSizwe yeTekhnoloji yezoKhuselo licebise inkqubo yoQINISEKISO ekhawulezayo, ebizwa ngokuba yi-qPROOF, yokuphawulwa kwe-ultra-wideband eyedwa ye-attosecond pulses.
Ngo-2025, abaphandi abavela kwi-Academy yaseTshayina yeSayensi e-Shanghai baphuhlisa iteknoloji yokuvumelanisa i-laser esekelwe kwinkqubo yokuvumelanisa ixesha elakhiwe ngokuzimeleyo, eyenza ukulinganisa kwexesha elichanekileyo le-jitter kunye nexesha langempela le-laser ye-picosecond lasers. Oku akulawulanga kuphela ixesha le-jitter yenkqubo ngaphakathi koluhlu lwe-attosecond kodwa kwandise ukuthembeka kwenkqubo yelaser ngexesha lokusebenza kwexesha elide. Uhlalutyo oluphuhlisiweyo kunye nenkqubo yokulawula inokwenza ukulungiswa kwexesha langempela kwi-jitter yexesha. Kwangalo nyaka mnye, abaphandi babekwasebenzisa iilaser ze-relativistic intensity spacetime vortices (STOV) ukuvelisa iipulse ze-attosecond gamma-ray ezizimeleyo ezithwele umfutho osecaleni we-orbital angular.
Intsimi ye-laser ye-attosecond ikwixesha lophuhliso olukhawulezayo, olubandakanya iinkalo ezininzi ukusuka kuphando olusisiseko ukuya ekuphakanyisweni kwesicelo. Ngeenzame zamaqela ophando lwenzululwazi, ukwakhiwa kweziseko ezingundoqo, inkxaso yemigaqo-nkqubo yesizwe, kunye nentsebenziswano yasekhaya neyamazwe ngamazwe kunye notshintshiselwano, uyilo lwaseTshayina kwinkalo ye-laser ye-attosecond luya kuxhamla amathemba ophuhliso olubanzi. Njengoko iiyunivesithi ezininzi kunye namaziko ophando ajoyina uphando kwi-laser ye-attosecond, iqela leetalente zophando lwezenzululwazi ezinombono wamazwe ngamazwe kunye nobuchule obutsha ziya kulinywa, ukukhuthaza uphuhliso oluzinzileyo lwesayensi ye-attosecond. Iziko lezenzululwazi le-Attosecond elingundoqo leSizwe liya kubonelela ngeqonga lophando elikhokelayo kuluntu lwezenzululwazi kwaye lenze igalelo elikhulu kuphuhliso lwenzululwazi nobuchwepheshe.
Ixesha lokuposa: Aug-26-2025