Idivayisi ye-laser yokuqala ye-attosecond yaseShayina isakhiwa

IsiShayinakuqalaidivayisi ye-laser ye-attosecondisakhiwa

I-attosecond isiyithuluzi elisha labacwaningi lokuhlola umhlaba we-elekthronikhi. "Kubacwaningi, ucwaningo lwe-attosecond luyisidingo, nge-attosecond, izivivinyo eziningi zesayensi enqubweni ye-athomu yesikali se-athomu kuzocaca kakhudlwana, abantu bamaprotheni ezinto eziphilayo, izenzakalo zokuphila, isikali se-athomu nolunye ucwaningo oluhlobene olunembe kakhudlwana." Kusho uPan Yiming.

U-Wei Zhiyi, umcwaningi e-Institute of Physics of the Chinese Academy of Sciences, ukholelwa ukuthi inqubekelaphambili yokukhanya okuhambisanayo kusuka kuma-femtoseconds kuya kuma-attoseconds akuyona nje inqubekelaphambili elula esikalini sesikhathi, kodwa okubaluleke nakakhulu, ikhono labantu lokufunda ukwakheka kwendaba, kusukela ekuhambeni kwama-athomu nama-molecule kuya ngaphakathi kwe-athomu kanye nokuziphatha okuhlobene, i-electron ekwazi ukubona ukunyakaza okuhlobene. inguquko ocwaningweni oluyisisekelo lwe-physics. Ingenye yezinhloso zesayensi ezibalulekile abantu abaziphishekelayo ukuze balinganise ngokunembile ukunyakaza kwama-electron, babone ukuqonda kwezakhiwo zabo ezingokomzimba, bese belawula ukuziphatha okuguquguqukayo kwama-electron kuma-athomu. Ngama-attosecond pulses, singakwazi ukukala futhi silawule izinhlayiya ezingazodwana ezincane kakhulu, futhi ngaleyo ndlela senze ukubhekwa okuyisisekelo nakakhulu kanye nezincazelo zomhlaba we-microscopic, umhlaba obuswa umshini we-quantum.

Nakuba lolu cwaningo lusekude kancane nomphakathi jikelele, ukugqugquzela "amaphiko ovemvane" ngokuqinisekile kuzoholela ekufikeni kocwaningo lwesayensi "isiphepho". E-China, i-attosecondlaserucwaningo oluhlobene lufakiwe ekuqondisweni kwentuthuko ebalulekile kazwelonke, uhlelo olufanele lokuhlola selakhiwe futhi idivayisi yesayensi iyahlelwa, izohlinzeka ngezindlela ezintsha ezibalulekile zocwaningo lwe-attosecond dynamics, ngokubhekwa kokunyakaza kwe-electron, ibe "isibonakhulu se-electron" esingcono kakhulu esigabeni sokuxazulula isikhathi esizayo.

Ngokusho kolwazi lomphakathi, i-attosecondidivayisi laserkuhlelwa eLabhorethri Yezinto Ezisetshenziswa Echibini i-Songshan endaweni yase-China yase-Guangdong-Hong Kong-Macao Greater Bay Area. Ngokwemibiko, indawo ethuthukisiwe ye-laser ye-attosecond yakhiwe ngokuhlanganyela yi-Institute of Physics of the Chinese Academy of Sciences kanye ne-Xiguang Institute of the Chinese Academy of Sciences, kanti i-Songshan Lake Materials Laboratory iyabandakanyeka ekwakhiweni. Ngokuklanywa kwendawo ephezulu yokuqalisa, ukwakhiwa kwesiteshi somugqa wemishayo eminingi esinemvamisa ephezulu yokuphindaphinda, amandla e-photon aphezulu, ukuguquguquka okuphezulu kanye nobubanzi be-pulse obufushane kakhulu kunikeza imisebe ehlangene ye-ultrafine enobubanzi obufushane be-pulse obungaphansi kwama-60as namandla e-photon aphakeme kakhulu afika ku-500ev, futhi ifakwe ipulatifomu yocwaningo lwesicelo ehambisanayo, futhi umholi wenkomba yohlelo lokusebenza olindelekile ukufeza okuphelele.