Isixhobo saseTshayina sokuqala se-laser siphantsi kolwakhiwo

IsiTshayinaEkuqaleniisixhobo laser attosecondisakhiwa

I-attosecond iye yaba sisixhobo esitsha sokuba abaphandi baphonononge ihlabathi le-elektroniki. "Kubaphandi, uphando lwe-attosecond luyimfuneko, kunye ne-attosecond, ezininzi iimvavanyo zesayensi kwinkqubo efanelekileyo ye-atomic scale dynamics iya kucaca ngakumbi, abantu beeprotheni zebhayoloji, iziganeko zobomi, isikali se-atom kunye nolunye uphando oluchaneke ngakumbi." UPan Yiming uthe.

U-Wei Zhiyi, umphandi kwiZiko leFiziksi ye-Chinese Academy of Sciences, ukholelwa ukuba inkqubela phambili ye-pulses yokukhanya ehambelanayo ukusuka kwi-femtoseconds ukuya kwi-attoseconds ayikho nje inkqubela elula kwisikali sexesha, kodwa okona kubaluleke kakhulu, ukukwazi kwabantu ukufunda. ulwakhiwo lwento, ukusuka kwintshukumo yeeathom kunye neeathom ukuya ngaphakathi kwee-athomu, inokubona intshukumo yee-electron kunye nokuziphatha okunxulumeneyo, okuye kwabangela uguquko olukhulu kuphando olusisiseko lwefiziksi. Yenye yeenjongo zenzululwazi ezibalulekileyo abantu abazisukelayo ukulinganisa ngokuchanekileyo ukushukuma kwee-electron, ukuqonda ukuqonda kweempawu zabo zomzimba, baze balawule ukuziphatha okuguquguqukayo kwee-electron kwii-athomu. Ngee-attosecond pulses, singakwazi ukulinganisa kunye nokuxhaphaza amasuntswana e-microscopic nganye, kwaye ke senze uqwalaselo olusisiseko kunye nolwantlandlolo kunye neenkcazo zehlabathi le-microscopic, ihlabathi elilawulwa yi-quantum mechanics.

Nangona olu phando lusekude kakhulu noluntu ngokubanzi, ukukhuthazwa "kwamaphiko ebhabhathane" ngokuqinisekileyo kuya kukhokelela ekufikeni kophando lwesayensi "isiqhwithi". ETshayina, attosecondlaseruphando olunxulumeneyo lubandakanyiwe kukhokelo lophuhliso olubalulekileyo lwesizwe, inkqubo yovavanyo efanelekileyo yakhiwe kwaye isixhobo sobunzululwazi siyacwangciswa, siya kubonelela ngeendlela ezintsha zokwenziwa kofundo lwe-attosecond dynamics, ngokujongwa kwentshukumo ye-electron, ibe yeyona ilungileyo. "i-electron microscope" kudidi lwesisombululo sexesha elizayo.

Ngokolwazi loluntu, i-attosecondisixhobo lasericwangciswa kwiLebhu yeZibonelelo zeChibi laseSongshan eChina eGuangdong-Hong Kong-Macao Greater Bay Area. Ngokweengxelo, isibonelelo se-laser ye-attosecond ephuculweyo yakhiwe ngokudibeneyo yi-Institute of Physics of the Chinese Academy of Sciences kunye ne-Xiguang Institute ye-Chinese Academy of Sciences, kunye neLebhu ye-Songhan Lake Materials Laboratory ibandakanyeka ekwakhiweni. Ngoyilo oluphezulu lwendawo yokuqalisa, ulwakhiwo lwesikhululo esinemiqadi emininzi ephindaphindwayo, amandla ephoton aphezulu, ukuqukuqela okuphezulu kunye nobubanzi obufutshane bepulse bubonelela ngemitha ye-ultrafine ehambelanayo enobubanzi obufutshane bepulse obungaphantsi kwe-60as kunye namandla ephoton aphezulu phezulu. ukuya ku-500ev, kwaye ixhotyiswe ngeqonga lophando lwesicelo esihambelanayo, kwaye isalathisi esibanzi kulindeleke ukuba sifezekise inkokeli yamazwe ngamazwe emva kokugqitywa.