Iindlela zobuchwepheshe kunye nophuhliso lweiileza ze-attosecondeTshayina
I-Institute of Physics, i-Chinese Academy of Sciences, ibike iziphumo zokulinganisa ezili-160 njengee-attosecond pulses ezizimeleyo ngo-2013. Ii-attosecond pulses ezizimeleyo (ii-IAP) zale qela lophando zenziwe ngokusekelwe kwi-harmonics ephezulu eqhutywa yi-sub-5 femtosecond laser pulses ezizinzileyo yi-CEP, ngesantya sokuphindaphinda se-1 kHz. Iimpawu zexesha lee-attosecond pulses zibonakaliswe yi-attosecond stretch spectroscopy. Iziphumo zibonisa ukuba le beamline inokubonelela ngee-attosecond pulses ezizimeleyo ezinobude be-pulse ye-160 attoseconds kunye nobude be-wavelength ephakathi ye-82eV. Iqela lenze inkqubela phambili ekuveliseni umthombo we-attosecond kunye netekhnoloji ye-attosecond stretching spectroscopy. Imithombo yokukhanya ye-ultraviolet egqithisileyo enesisombululo se-attosecond iya kuvula amasimi amatsha esicelo se-condensed matter physics. Ngo-2018, i-Institute of Physics, i-Chinese Academy of Sciences, nayo ibike isicwangciso sokwakha isixhobo somsebenzisi sokulinganisa ixesha esixazululwe ngeendlela ezahlukeneyo esidibanisa imithombo yokukhanya ye-attosecond kunye neendawo ezahlukeneyo zokulinganisa. Oku kuya kwenza abaphandi bakwazi ukwenza umlinganiselo wexesha oguquguqukayo weenkqubo ze-ultrafast kwi-matter, ngelixa benomfutho kunye nesisombululo sendawo. Kwaye kuvumela abaphandi ukuba baphonononge kwaye balawule i-microscopic ultrafast electronic dynamics kwii-athomu, iimolekyuli, iindawo eziphezulu kunye nezinto eziqinileyo ezinkulu. Oku kuya kuvula indlela yokuqonda nokusebenzisa izinto ezifanelekileyo ze-macroscopic ezigubungela iinkalo ezininzi zophando ezifana nefiziksi, ikhemistri kunye nebhayoloji.
Ngowama-2020, iYunivesithi yeSayensi neTekhnoloji yaseHuazhong yacebisa ukusetyenziswa kwendlela ye-all-optical ukulinganisa ngokuchanekileyo nokwakha kwakhona ii-attosecond pulses ngokusebenzisa iteknoloji ye-optical gating exazululwe rhoqo. Ngowama-2020, i-Chinese Academy of Sciences nayo yabika ukuba iphumelele ukuvelisa ii-attosecond pulses ezizimeleyo ngokubumba intsimi ye-femtosecond pulse photoelectric ngokusebenzisa iteknoloji ye-pass-gate ekhethiweyo kabini. Ngowama-2023, iqela elivela kwiYunivesithi yeSizwe yeTekhnoloji yoKhuselo lacebisa inkqubo ye-PROOF ekhawulezayo, ebizwa ngokuba yi-qPROOF, yokuchaza ii-attosecond pulses ezizimeleyo ze-ultra-wideband.
Ngowama-2025, abaphandi abavela kwi-Chinese Academy of Sciences eShanghai baphuhliseilezaIteknoloji yokuvumelanisa esekwe kwinkqubo yokuvumelanisa ixesha eyakhelwe ngokuzimeleyo, evumela ukulinganiswa kwexesha elichanekileyo kunye nempendulo yexesha langempela yee-laser ze-picosecond. Oku akuphelelanga nje ekulawuleni i-time jitter yenkqubo ngaphakathi koluhlu lwe-attosecond kodwa kwaphucula ukuthembeka kweinkqubo yelaserngexesha lokusebenza kwexesha elide. Inkqubo yohlalutyo nolawulo ephuhlisiweyo inokwenza ulungiso lwexesha langempela lokujika kwexesha. Kunyaka ofanayo, abaphandi babesebenzisa ii-laser ze-relativistic intensity spacetime vortices (STOV) ukuvelisa ii-pulses ze-gamma-ray ezizimeleyo ezithwala i-lateral orbital angular momentum.
Intsimi ye-attosecond lasers ikwixesha lophuhliso olukhawulezayo, olugubungela iinkalo ezininzi ukusuka kuphando olusisiseko ukuya ekukhuthazweni kwezicelo. Ngemizamo yamaqela ophando lwesayensi, ukwakhiwa kweziseko zophuhliso, inkxaso yemigaqo-nkqubo yesizwe, kunye nentsebenziswano yasekhaya neyamazwe ngamazwe kunye nokutshintshiselana, ulwakhiwo lweTshayina kwicandelo le-attosecond lasers luya kuba namathuba ophuhliso olubanzi. Njengoko iiyunivesithi ezininzi kunye namaziko ophando ejoyina uphando malunga ne-attosecond lasers, iqela leetalente zophando lwesayensi ezinembono yamazwe ngamazwe kunye nezakhono ezintsha ziya kuphuhliswa, zikhuthaza uphuhliso oluzinzileyo lwesayensi ye-attosecond. Isikhungo senzululwazi esikhulu seSizwe se-Attosecond siya kubonelela ngeqonga lophando eliphambili kuluntu lwesayensi kwaye senze igalelo elikhulu ekuphuculeni isayensi kunye netekhnoloji.
Ixesha leposi: Agasti-26-2025