Cov kws tshawb nrhiav ntawm Crann (Center rau kev tshawb fawb ntawm kev yoog cov qauv thiab Nanodevices College Tsev Kawm Qib Siab Dublin, Hnub no hnub no ACov Khoom Siv Sib NqusTsim ntawm qhov chaw ua qauv pom kev sib nqus nrawm tshaj plaws tau sau tseg.
Pab neeg siv femtosecond laser tshuab hauv lub ntsuas kev tshawb fawb ntawm lawv cov ntaub ntawv ntawm cov ntaub ntawv dhau los, thiab ib puas npaug nrawm dua li lub moos ceev ntawm lub computer.
Qhov kev tshawb pom no ua rau pom muaj peev xwm ntawm cov khoom siv tshiab ntawm lub zog hluav taws xob ultra-ceev cov koos pij tawj thiab cov ntaub ntawv cia cov tshuab.
Cov kws tshawb nrhiav tau ua tiav lawv qhov tsis tau pom dua hloov mus nrawm hauv ib pawg neeg hauv 2014 los ntawm Manganese, Ruthenium thiab Gallium. Hauv kev sim, pab neeg no ntaus cov yeeb yaj kiab nyias ntawm MRG nrog tawg ntawm liab laser laser las, xa megawatts ntawm lub hwj chim tsawg dua li ib tus thib ob.
Cov cua sov hloov mus rau cov kev taw qhia sib nqus ntawm mrg. Nws yuav siv sij hawm ua kom nrawm nrawm ntawm lub picosecond kom ua tiav qhov kev hloov ua ntej no (1 ps = ib qho trillionons ntawm ib ob. Tab sis, tseem ceeb tshaj plaws, pab pawg tau tshawb pom lawv tuaj yeem hloov cov kev taw qhia rov qab 10 trillionths ntawm ib thib ob tom qab tom qab. Qhov no yog qhov rov hloov nrawm dua ntawm cov hlau nplaum cov kev cob qhia uas tau pom dua.
Lawv cov txiaj ntsig tau tshaj tawm lub lim tiam no hauv physics uas ua physics mloog, kev ntsuas lub cev tshuaj.
Qhov kev tshawb pom tuaj yeem qhib txoj hauv kev tshiab rau kev hloov pauv tshiab thiab cov ntaub ntawv siv thev naus laus zis, muab qhov tseem ceeb ntawmCov Khoom Siv Sib Nquss nyob rau hauv no kev lag luam. Muab zais rau hauv ntau ntawm peb cov khoom siv hluav taws xob, nrog rau cov chaw nruab nrab ntawm lub plawv ntawm Is Taws Nem, cov ntaub ntawv sib nqus thiab khaws cov ntaub ntawv. Cov ntaub ntawv tam sim no tawg nthuav dav cov ntaub ntawv thiab noj lub zog ntau dua puas tau ua ntej. Nrhiav txoj hauv kev siv zog tshiab rau cov ntaub ntawv siv cov ntaub ntawv, thiab cov ntaub ntawv kom phim, yog kev tshawb nrhiav thoob ntiaj teb kev xav tau.
Tus yuam sij rau Trinity Teams 'kev vam meej yog lawv lub peev xwm ua tiav ultrafast hloov chaw yam tsis muaj kev sib nqus. Kev hloov pauv ntawm cov hlau nplaum siv lwm cov hlau nplaum, uas los ntawm tus nqi ntawm ob lub zog thiab sijhawm. Nrog MRG lub pob hloov tau ua tiav nrog lub kub nias tes, ua kev siv cov khoom siv tshwj xeeb nrog lub teeb.
Trinity Kws Tshawb Fawb NEAN Besbas thiab Karsten Rode tham ib txoj avenue ntawm kev tshawb fawb:
"Cov Khoom Siv Sib NqusS gineently muaj lub cim xeeb uas tuaj yeem siv rau kev nkag tau. Txog tam sim no, hloov los ntawm ib lub xeev sib nqus 'cov ntsiab lus 0,' rau lwm 'lub ntsiab lus 1,' tau muaj zog dhau los thiab qeeb heev. Peb cov kev tshawb fawb chaw nyob ceev los ntawm kev qhia tias peb tuaj yeem hloov MRG los ntawm ib lub xeev mus rau lwm tus hauv 0.1 Picoseconds thiab qhov kev ua haujlwm thib ob tuaj yeem ua tiav ntawm ~ 100 gigahertz-sai dua txhua yam uas pom ua ntej.
"Qhov kev tshawb pom tau hais txog lub peev xwm tshwj xeeb ntawm peb txoj kev muaj txiaj ntsig zoo nkauj thiab tig mus rau lub teeb thiab lub teeb nrog lub sijhawm hithero unachescales."
Tawm tswv yim txog nws pab neeg ua haujlwm, xibfwb Michael Feey, Ruthenium thiab kuv yeej tsis xav tias yog cov khoom siv tau zoo tshaj plaws ntawm cov peev txheej Magneto-Optical.
"Qhov ua qauv qhia no yuav ua rau lub teeb tshiab rau lub teeb thiab lub zog ua kom pom tseeb thiab lub zog ua tau zoo los ntawm kev nco ib leeg thiab cov haujlwm tsim nyog. Nws yog qhov kev sib tw loj heev, tab sis peb tau pom cov khoom uas ua rau nws ua tau. Peb vam tias yuav muaj kev ruaj ntseg pab nyiaj thiab kev lag luam sib koom tes los ua kom peb txoj haujlwm. "
Lub Sijhawm Post: Lub Tsib Hlis-05-2021