Laser tsav kom tau raws li lub Leap: Cov tiam tom ntej ntawm cov khoom siv hlau nplaum los tswj lub teeb yog yug!

Tsis ntev los no, lub tshuab cua sov laser tshiab los ntawm pab pawg tshawb fawb Nyij Pooj tau ua txoj hauv kev rau kev sib txuas lus kho qhov muag zoo tshaj plaws los ntawm kev sib koom ua ke cov ntaub ntawv pob tshab sib nqus rau hauv cov khoom siv kho qhov muag.
Qhov kev tshwm sim tsis ntev los no tau luam tawm hauv phau ntawv xov xwm Optical Materials. Nws yog ib qho tseem ceeb rau kev sib koom ua ke ntawm cov khoom siv magneto-optical thiab optical circuits, uas tau ntev dhau los ua ib qho kev sib tw loj hauv kev ua haujlwm. Nws cog lus ua ntej hauv kev sib cog lus magneto-optical isolators, miniaturized lasers, high-resolution displays thiab me me optical devices.
Laser cua sov ntawm pob tshab sib nqus cov ntaub ntawv
Tshwj xeeb, cov kws tshawb fawb ntawm Tohoku University (Nyiv) thiab Toyohashi University of Technology (Nyiv) tau tsim ib txoj hauv kev tshiab rau kev tsim cov khoom sib nqus pob tshab siv laser cua sov.
"Tus yuam sij rau qhov kev ua tiav no yog kev tsim 'cerium-hloov yttrium hlau garnet' (Ce:YIG), cov khoom sib nqus pob tshab, siv cov txheej txheem tshwj xeeb laser cua sov," said Taichi Kawasaki, tus kws tshaj lij ntawm Kev Tshawb Fawb Lub Tsev Kawm Ntawv ntawm Electronics thiab. Kev sib txuas lus (RIEC) ntawm Tohoku University thiab co-sau ntawm txoj kev tshawb no. Taichi Goto, tus kws sau ntawv ntawm txoj kev tshawb no, tau sau tseg tias, "Qhov kev mus kom ze no cuam tshuam los ntawm lub fwj tseem ceeb ntawm kev sib koom ua ke cov ntaub ntawv magneto-optical nrog cov khoom siv kho qhov muag yam tsis muaj kev puas tsuaj rau lawv-ib qho teeb meem uas cuam tshuam kev nce qib hauv cov khoom siv sib txuas lus kho qhov muag me me."
Magneto-optical isolators hauv kev sib txuas lus kho qhov muag
Magneto-optical isolators yog qhov tseem ceeb los ua kom muaj kev sib txuas lus kho qhov muag ruaj khov. Lawv ua raws li tus neeg xyuas pib rau cov teeb liab tsheb, cia lawv txav mus rau hauv ib qho kev taw qhia tab sis tsis yog lwm qhov. Kev koom ua ke cov kev sib cais no rau hauv silicon-based photonic circuits yog qhov nyuaj vim cov txheej txheem kub kub feem ntau koom nrog.
Vim yog qhov nyuaj no, Taichi Goto thiab nws cov npoj yaig tau tsom mus rau lawv cov xim ntawm laser annealing - cov txheej txheem uas siv lub laser los xaiv qhov kub tshwj xeeb ntawm cov khoom siv. Qhov no ua rau muaj kev tswj xyuas meej, cuam tshuam rau thaj chaw lub hom phiaj nkaus xwb thiab tsis yog thaj chaw ib puag ncig.
Kev tshawb fawb yav dhau los tau siv nws los xaiv cov cua sov bismuth-hloov pauv yttrium hlau garnet (Bi: YIG) cov yeeb yaj kiab tso rau ntawm daim iav dielectric. Qhov no tso cai rau Bi:YIG kom crystallize yam tsis cuam tshuam rau daim iav dielectric.
Txawm li cas los xij, teeb meem tshwm sim thaum siv Ce:YIG (ib qho khoom siv zoo tshaj plaws rau cov khoom siv kho qhov muag vim nws cov khoom sib nqus thiab cov khoom siv kho qhov muag), vim tias huab cua tuaj yeem ua rau cov tshuaj tsis haum tshuaj.
Txhawm rau zam qhov no, cov kws tshawb fawb tau tsim cov cuab yeej tshiab uas ua kom sov cov khoom hauv lub tshuab nqus tsev, uas yog, tsis muaj cua, siv lub laser. Qhov no tso cai rau thaj chaw me me (kwv yees li 60 micrometers) ua kom sov zoo yam tsis muaj kev hloov pauv cov khoom nyob ib puag ncig.
Kev cuam tshuam rau optical technology
Goto hais ntxiv, "Cov khoom siv pob tshab sib nqus tsim los ntawm cov qauv no yuav tsum tau ua kom muaj txiaj ntsig zoo rau kev txhim kho cov khoom sib nqus magneto-optical isolators, uas yog qhov tseem ceeb rau kev sib txuas lus kho qhov muag. -kev daws teeb meem qhia thiab cov khoom siv kho qhov muag me me."