Inkqubela phambili yamva nje kwindlela yokuvelisa i-laser kunye nentshauphando lwelaser
Kutshanje, iqela lophando likaNjingalwazi uZhang Huaijin kunye noNjingalwazi uYu Haohai weLabhoratri yeState Key ye-Crystal Materials yeYunivesithi yaseShandong kunye noNjingalwazi uChen Yanfeng kunye noNjingalwazi uHe Cheng weLabhoratri yeState Key yeSolid Microstructure Physics yeYunivesithi yaseNanjing baye basebenza kunye ukusombulula le ngxaki. ingxaki kwaye iphakamise indlela yokuvelisa i-laser yokumpompa ngokubambisana kwe-phoon-phonon, kwaye yathatha i-Nd yendabuko: i-YVO4 laser crystal njengento emele uphando.Imveliso ye-laser esebenzayo ephezulu ye-superfluorescence ifunyanwa ngokuqhekeza umda wenqanaba lamandla e-electron, kunye nobudlelwane bomzimba phakathi kwe-laser generation threshold kunye nobushushu (inombolo yephonon inxulumene ngokusondeleyo) iyatyhilwa, kwaye ifom yentetho iyafana nomthetho kaCurie.Uphononongo lupapashwe kwiNdawo yoNxibelelwano lweNdalo (doi: 10.1038 / S41467-023-433959-9) phantsi kwegama elithi "Photon-phonon collaboratively pumped laser".U-Yu Fu noFei Liang, umfundi we-PhD weKlasi ye-2020, iLabhoratri ye-State Key ye-Crystal Materials, iYunivesithi yaseShandong, ngababhali bokuqala, u-Cheng He, i-State Key Laboratory ye-Solid Microstructure Physics, iYunivesithi yaseNanjing, umbhali wesibini, kunye noNjingalwazi uYu. UHaohai noHuaijin Zhang, iYunivesithi yaseShandong, kunye neYanfeng Chen, iYunivesithi yaseNanjing, ngababhali abahambelanayo.
Ukusukela oko u-Einstein ecebise ithiyori yokukhanya evuselelweyo kwinkulungwane edlulileyo, indlela yelaser iphuhliswe ngokupheleleyo, kwaye ngo-1960, uMaiman wayila i-laser yokuqala ye-optically pumped solid-state.Ngexesha lokwenziwa kwelaser, ukuphumla kwe-thermal yinto ebalulekileyo yomzimba ehamba nesizukulwana selaser, esichaphazela kakhulu ukusebenza kwelaser kunye namandla e-laser akhoyo.Ukuphumla kwe-thermal kunye nefuthe le-thermal lihlala lithathwa njengeyona nto iphambili yeparameters eyingozi kwinkqubo ye-laser, ekufuneka incitshiswe ngokutshintshwa kobushushu obuhlukeneyo kunye nobuchwepheshe befriji.Ngoko ke, imbali yophuhliso lwe-laser ithathwa njengembali yomzabalazo kunye nokushisa kwenkunkuma.
Isishwankathelo sethiyori ye-photon-phonon cooperative pumping laser
Iqela lophando kudala libandakanyeka kwi-laser kunye ne-nonlinear optical materials research, kwaye kwiminyaka yakutshanje, inkqubo yokuphumla kwe-thermal iye yaqondwa ngokunzulu kwimbono ye-fiziksi yombuso oqinileyo.Ngokusekwe kumbono osisiseko wokuba ubushushu (ubushushu) bufakwe kwiiphononi ze-microcosmic, kuthathelwa ingqalelo ukuba ukuphumla kwe-thermal ngokwayo kuyinkqubo ye-quantum yokudibanisa i-electron-phonon, enokuqonda ukuthungwa kwe-quantum yamanqanaba ombane we-electron ngoyilo olufanelekileyo lwelaser, kunye nokufumana. Iitshaneli ezintsha zenguqu ye-electron ukuvelisa ubude obutsha be-wavelenglaser.Ngokusekelwe kule ngcinga, umgaqo omtsha we-electron-phonon cooperative pumping laser generation ucetywayo, kwaye umgaqo we-electron transition phantsi kwe-electron-phonon coupling uthathwe ngokuthatha i-Nd: YVO4, i-crystal ye-laser eyisiseko, njengento emele.Ngelo xesha, i-photon-phonon cooperative laser pumping engapheliyo yakhiwe, esebenzisa iteknoloji ye-laser diode pumping technology.I-Laser enobude obunqabileyo be-1168nm kunye ne-1176nm iyilwe.Ngesi siseko, ngokusekwe kumgaqo osisiseko wesizukulwana se-laser kunye ne-electron-phonon coupling, kufumaniseka ukuba imveliso ye-laser generation threshold kunye nobushushu buhlala buhleli, bufana nokubonakaliswa komthetho kaCurie kwimagnetism, kwaye ikwabonisa. umthetho osisiseko wenyama kwinkqubo yenguqu yesigaba esiphazamisekileyo.
Ukuzaliseka kovavanyo lwentsebenziswano ye-photon-phononukumpompa laser
Lo msebenzi ubonelela ngombono omtsha wophando olutsha kwindlela yokuvelisa i-laser,laser physics, kunye ne-laser yamandla aphezulu, ikhomba idimension entsha yoyilo lolwandiso lwetekhnoloji yolwandiso lwamaza e-laser kunye nokuhlola ikristale yelaser, kwaye inokuzisa izimvo ezintsha zophando kuphuhliso lwe.i-quantum optics, iyeza le-laser, ukubonisa i-laser kunye nezinye iindawo ezihambelanayo zesicelo.
Ixesha lokuposa: Jan-15-2024