Tsis ntev los no kev nce qib hauv laser tiam mechanism thiab tshiablaser tshawb nrhiav
Tsis ntev los no, pab pawg tshawb fawb ntawm xibfwb Zhang Huaijin thiab xibfwb Yu Haohai ntawm Xeev Lub Tsev Haujlwm Tseem Ceeb ntawm Cov Khoom Siv Crystal ntawm Shandong University thiab xibfwb Chen Yanfeng thiab xibfwb He Cheng ntawm Lub Xeev Lub Chaw Haujlwm Tseem Ceeb ntawm Cov Khoom Siv Microstructure Physics ntawm Nanjing University tau ua haujlwm ua ke los daws cov teeb meem. teeb meem thiab npaj lub laser tiam mechanism ntawm phoon-phonon kev sib koom tes twj tso kua mis, thiab coj cov tsoos Nd:YVO4 laser siv lead ua raws li tus neeg sawv cev tshawb fawb khoom. Lub high efficiency laser output ntawm superfluorescence yog tau los ntawm kev tawg los ntawm lub electron zog theem txwv, thiab lub cev kev sib raug zoo ntawm lub laser tiam pib thiab kub (phonon tooj yog ze ze) tau tshwm sim, thiab daim ntawv qhia yog tib yam li Curie txoj cai. Txoj kev tshawb no tau luam tawm nyob rau hauv Nature Communications (doi: 10.1038 / S41467-023-433959-9) nyob rau hauv lub npe "Photon-phonon sib koom tes pumped laser". Yu Fu thiab Fei Liang, PhD cov tub ntxhais kawm ntawm Chav Kawm 2020, Lub Xeev Lub Chaw Haujlwm Tseem Ceeb ntawm Cov Khoom Siv Crystal, Shandong University, yog tus kws sau ntawv thawj zaug, Cheng He, Lub Xeev Lub Chaw Haujlwm Tseem Ceeb ntawm Cov Khoom Siv Microstructure Physics, Nanjing University, yog tus sau thib ob, thiab cov xibfwb Yu Haohai thiab Huaijin Zhang, Shandong University, thiab Yanfeng Chen, Nanjing University, yog cov kws sau ntawv sib koom ua ke.
Txij li thaum Einstein tau tshaj tawm txoj kev xav ntawm hluav taws xob hluav taws xob ntawm lub teeb nyob rau hauv lub xyoo pua xeem, lub laser mechanism tau tsim tag nrho, thiab nyob rau hauv 1960, Maiman tau tsim thawj optically pumped solid-state laser. Thaum lub sij hawm laser tiam, thermal so yog ib qho tseem ceeb ntawm lub cev tshwm sim nrog laser tiam, uas cuam tshuam rau laser kev ua tau zoo thiab muaj lub zog laser. Thermal so thiab thermal nyhuv yeej ib txwm raug suav hais tias yog qhov tseem ceeb ntawm lub cev tsis zoo hauv cov txheej txheem laser, uas yuav tsum tau txo qis los ntawm ntau yam kev hloov hluav taws xob thiab cov tub yees yees. Yog li ntawd, keeb kwm ntawm kev txhim kho laser yog suav tias yog keeb kwm ntawm kev tawm tsam nrog khib nyiab.
Theoretical txheej txheem cej luam ntawm photon-phonon koom tes pumping laser
Pab neeg tshawb fawb tau ntev tau koom nrog hauv laser thiab nonlinear optical cov ntaub ntawv tshawb fawb, thiab nyob rau hauv xyoo tas los no, cov txheej txheem thermal so tau nkag siab tob los ntawm qhov kev xav ntawm lub xeev physics. Raws li lub tswv yim yooj yim uas kub (kub) yog embodied nyob rau hauv lub microcosmic phonons, nws yog xam tau tias thermal so nws tus kheej yog ib tug quantum txheej txheem ntawm electron-phonon coupling, uas muaj peev xwm paub quantum tailoring ntawm electron zog theem los ntawm tsim nyog laser, thiab tau txais. tshiab electron hloov raws los tsim cov wavelength tshiablaser. Raws li qhov kev xav no, lub hauv paus ntsiab lus tshiab ntawm electron-phonon kev koom tes siv hluav taws xob laser tiam yog npaj, thiab txoj cai hloov hluav taws xob nyob rau hauv electron-phonon coupling yog muab los ntawm kev noj Nd: YVO4, ib qho yooj yim laser siv lead ua, ua cov khoom sawv cev. Nyob rau tib lub sijhawm, ib qho kev sib koom ua ke ntawm photon-phonon kev koom tes siv lub laser yog tsim, uas siv cov tsoos laser diode siv tshuab. Laser nrog tsawg wavelength 1168nm thiab 1176nm yog tsim. Rau lub hauv paus no, raws li lub hauv paus ntsiab lus ntawm laser tiam thiab electron-phonon coupling, nws tau pom tias cov khoom ntawm laser tiam theem pib thiab kub yog ib tug tas li, uas yog tib yam li cov lus qhia ntawm Curie txoj cai nyob rau hauv magnetism, thiab kuj qhia tau hais tias. txoj cai ntawm lub cev tseem ceeb hauv cov txheej txheem hloov pauv tsis zoo.
Kev sim realization ntawm photon-phonon koom tessiv laser
Txoj haujlwm no muab qhov kev xav tshiab rau kev tshawb fawb txog kev tsim cov tshuab laser,laser physics, thiab siab zog laser, taw qhia qhov tshiab tsim dimension rau laser wavelength expansion technology thiab laser siv lead ua kev tshawb fawb, thiab tej zaum yuav coj tshiab kev tshawb fawb tswv yim rau kev loj hlob ntawmquantum optics, laser tshuaj, laser zaub thiab lwm yam ntaub ntawv thov teb.
Post lub sij hawm: Jan-15-2024