Inkqubela phambili yakutshanje kwindlela yokuvelisa i-laser kunye nentshauphando lwelaser
Kutshanje, iqela lophando likaNjingalwazi uZhang Huaijin kunye noNjingalwazi uYu Haohai we-State Key Laboratory of Crystal Materials kwiYunivesithi yaseShandong kunye noNjingalwazi uChen Yanfeng kunye noNjingalwazi uHe Cheng we-State Key Laboratory of Solid Microstructure Physics yaseNanjing University basebenze kunye ukusombulula ingxaki kwaye bacebisa indlela yokuvelisa i-laser yokupompa ngokubambisana kwe-phoon-phonon, kwaye bathatha ikristale yelaser yendabuko ye-Nd:YVO4 njengento emele uphando. Isiphumo se-laser esebenza kakuhle kakhulu se-superfluorescence sifunyanwa ngokugqitha umda wamandla e-electron, kwaye ubudlelwane obuphakathi komda wokuvelisa i-laser kunye nobushushu (inombolo ye-phonon inxulumene ngokusondeleyo) buyatyhilwa, kwaye imo yokubonakalisa iyafana nomthetho kaCurie. Olu phononongo lupapashwe kwi-Nature Communications (doi:10.1038/ S41467-023-433959-9) phantsi kwegama elithi “Photon-phonon collaboratively pumped laser”. UYu Fu kunye noFei Liang, abafundi bePhD kwiKlasi ka-2020, iState Key Laboratory of Crystal Materials, kwiYunivesithi yaseShandong, ngababhali abasebenzisana nabo, uCheng He, iState Key Laboratory of Solid Microstructure Physics, kwiYunivesithi yaseNanjing, ngumbhali wesibini, kwaye uNjingalwazi uYu Haohai kunye noHuaijin Zhang, kwiYunivesithi yaseShandong, kunye noYanfeng Chen, kwiYunivesithi yaseNanjing, ngababhali abasebenzisana nabo.
Ukususela oko uEinstein wacebisa ithiyori yokukhanya evuselelayo kwinkulungwane edlulileyo, indlela yelaser iye yaphuhliswa ngokupheleleyo, kwaye ngo-1960, uMaiman wasungula ilaser yokuqala epompelwe nge-optically. Ngexesha lokuveliswa kwelaser, ukuphumla kobushushu yinto ebalulekileyo yomzimba ehamba nokuveliswa kwelaser, echaphazela kakhulu ukusebenza kwelaser kunye namandla elaser akhoyo. Ukuphumla kobushushu kunye nefuthe lobushushu bezisoloko zithathwa njengeeparameter ezibalulekileyo zomzimba eziyingozi kwinkqubo yelaser, ekufuneka zincitshiswe ziiteknoloji ezahlukeneyo zokudlulisa ubushushu kunye nokubandayo. Ke ngoko, imbali yophuhliso lwelaser ithathwa njengembali yomzabalazo nobushushu obungafunekiyo.
Isishwankathelo sethiyori se-laser yokupompa ye-photon-phonon ngokubambisana
Iqela lophando belisoloko libandakanyeka kuphando lwezixhobo ze-laser kunye ne-nonlinear optical, kwaye kwiminyaka yakutshanje, inkqubo yokuphumla kobushushu iqondwe ngokunzulu ngokwembono yefiziksi yesimo esiqinileyo. Ngokusekelwe kwingcamango esisiseko yokuba ubushushu (ubushushu) bukwii-phonon ze-microcosmic, kuthathwa ukuba ukuphumla kobushushu ngokwako yinkqubo ye-quantum yokudibanisa i-electron-phonon, enokwenza ukulungiswa kwe-quantum kwamanqanaba amandla e-electron ngoyilo olufanelekileyo lwe-laser, kwaye ifumane iziteshi ezintsha zotshintsho lwe-electron ukuvelisa ubude obutsha be-wavelength.ilezaNgokusekelwe kule ngcinga, kucetywa umgaqo omtsha wokuveliswa kwelaser yokupompa ngentsebenziswano ye-electron-phonon, kwaye umthetho wotshintsho lwe-electron phantsi kokudibanisa kwe-electron-phonon uvela ngokuthatha i-Nd:YVO4, ikristale yelaser esisiseko, njengento emeleyo. Kwangaxeshanye, kwakhiwa ilaser yokupompa ngentsebenziswano ye-photon-phonon engapholiyo, esebenzisa iteknoloji yokupompa ye-laser diode yendabuko. Ilaser enobude obungaqhelekanga be-1168nm kunye ne-1176nm iyilwe. Ngale siseko, ngokusekwe kumgaqo osisiseko wokuveliswa kwelaser kunye nokudibanisa kwe-electron-phonon, kufunyaniswe ukuba imveliso yomgangatho kunye nobushushu bokuveliswa kwelaser yi-consistent, efana nokubonakaliswa komthetho kaCurie kwimagnetism, kwaye ikwabonisa umthetho osisiseko wendalo kwinkqubo yotshintsho lwesigaba esingacwangciswanga.
Ukuphunyezwa kovavanyo lwe-photon-phonon cooperativeukupompa i-laser
Lo msebenzi ubonelela ngembono entsha yophando oluphambili malunga nendlela yokuvelisa i-laser,ifiziksi yelaser, kunye ne-laser enamandla aphezulu, ibonisa ubukhulu obutsha boyilo lwetekhnoloji yokwandisa ubude be-laser kunye nokuhlolwa kwekristale ye-laser, kwaye inokuzisa izimvo ezintsha zophando zophuhliso lwei-quantum optics, amayeza e-laser, umboniso we-laser kunye nezinye iindawo zesicelo ezinxulumene noko.
Ixesha leposi: Jan-15-2024