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 ubume bezinto, ukusuka kwintshukumo yee-athomu kunye neemolekyuli ukuya ngaphakathi kwi-athomu ye-elektroni kunye ne-athomu ehambelanayo, ekwazi ukubona i-athomu ehambelanayo kunye nokuziphatha okuhambelanayo. revolution kuphando lwefiziksi esisiseko. 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 kumkhombandlela wophuhliso olubalulekileyo lwesizwe, inkqubo yovavanyo efanelekileyo iye yakhiwe kwaye isixhobo senzululwazi siyacwangciswa, siya kubonelela ngeendlela ezintsha ezintsha zophononongo lwe-attosecond dynamics, ngokujongwa kwentshukumo ye-electron, ibe yeyona “microscope ye-electron” igqwesileyo kwicandelo lesisombululo 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 somgca wemitha emininzi esiphindaphindwayo, amandla efoton aphezulu, ukuqukuqela okuphezulu kunye nobubanzi obufutshane bepulse bubonelela ngemitha ye-ultrafine ehambelanayo enobubanzi obufutshane be-pulse obungaphantsi kwe-60as kunye namandla efoton aphezulu ukuya kuthi ga kwi-500ev, kwaye ixhotyiswe ngeqonga lophando lesicelo elihambelanayo, kwaye isikhokelo sophando esipheleleyo silindeleke ukuba sifezekiswe.