Isixhobo sokuqala se-laser se-attosecond saseTshayina siyakhiwa

IsiTshayinaEkuqaleniisixhobo se-laser se-attosecondisakhiwa

I-attosecond ibe sisixhobo esitsha kubaphandi ukuba bahlolisise ihlabathi le-elektroniki. “Kubaphandi, uphando lwe-attosecond luyimfuneko, nge-attosecond, uvavanyo oluninzi lwesayensi kwinkqubo ye-dynamics yesikali se-atomic efanelekileyo luya kucaca ngakumbi, abantu kwiiproteni zebhayoloji, iziganeko zobomi, isikali se-atomic kunye nolunye uphando olunxulumene nalo luchaneke ngakumbi.” utshilo uPan Yiming.

UWei Zhiyi, umphandi kwi-Institute of Physics of the Chinese Academy of Sciences, ukholelwa ukuba inkqubela phambili yee-coherent light pulses ukusuka kwi-femtoseconds ukuya kwi-attoseconds ayisiyo inkqubela nje elula kwisikali sexesha, kodwa okubaluleke ngakumbi, ukukwazi kwabantu ukufunda ulwakhiwo lwezinto, ukusuka ekushukumeni kwee-athomu kunye neemolekyuli ukuya ngaphakathi kwee-athomu, kunokubona intshukumo yee-elektroni kunye nokuziphatha okunxulumene noko, okubangele utshintsho olukhulu kuphando olusisiseko lwefiziksi. Yenye yeenjongo zesayensi ezibalulekileyo abantu abazilandelayo ukulinganisa ngokuchanekileyo intshukumo yee-elektroni, ukuqonda ukuqonda iimpawu zazo zomzimba, kunye nokulawula ukuziphatha okuguquguqukayo kwee-elektroni kwii-athomu. Ngee-attosecond pulses, sinokulinganisa size silawule amasuntswana amancinci ngamanye, size ngaloo ndlela senze uqwalaselo olusisiseko noluyintsusa kunye neenkcazo zehlabathi le-microscopic, ihlabathi elilawulwa yi-quantum mechanics.

Nangona olu phando lusakude kancinci noluntu ngokubanzi, ukukhuthazwa "kwamaphiko ebhabhathane" ngokuqinisekileyo kuya kukhokelela ekufikeni kophando lwesayensi "isiphepho". ETshayina, i-attosecondilezaUphando olunxulumene nalo lubandakanyiwe kwicala elibalulekileyo lophuhliso lwesizwe, inkqubo efanelekileyo yovavanyo yakhiwe kwaye isixhobo sesayensi siyacwangciswa, siya kubonelela ngeendlela ezibalulekileyo ezintsha zokufunda i-attosecond dynamics, ngokujonga intshukumo ye-electron, sibe "yi-electron microscope" engcono kakhulu kudidi lwesisombululo sexesha elizayo.

Ngokweenkcukacha zoluntu, i-attosecondisixhobo selaserKucwangciswa kwiLebhu yezixhobo zeLake yaseSongshan eGuangdong-Hong Kong-Macao eGreater Bay Area eTshayina. Ngokweengxelo, isikhungo selaser esiphucukileyo se-attosecond sakhiwe ngokubambisana yi-Institute of Physics of the Chinese Academy of Sciences kunye ne-Xiguang Institute of the Chinese Academy of Sciences, kwaye iLebhu yezixhobo zeLake yaseSongshan ibandakanyeka kulwakhiwo. Ngokusebenzisa uyilo oluphezulu lokuqala, ukwakhiwa kwesikhululo somgca we-multi-beam esine-frequency ephezulu yokuphindaphinda, amandla aphezulu e-photon, i-flux ephezulu kunye nobubanzi obufutshane kakhulu be-pulse bubonelela ngemitha ehambelanayo ye-ultrafine enobubanzi obufutshane be-pulse obungaphantsi kwe-60as kunye namandla aphezulu e-photon ukuya kuthi ga kwi-500ev, kwaye ixhotyiswe ngeqonga lophando lwesicelo elifanelekileyo, kwaye isalathisi esipheleleyo kulindeleke ukuba sifikelele kwinkokeli yamazwe ngamazwe emva kokugqitywa.