Ntawm no, txo qis cov nyhuv thiab kev ua haujlwm ntawm laser ntawm Nd:YAG pob tshab ceramics tau tshawb xyuas.Siv 0.6 at.% Nd: YAG ceramic pas nrig nrog 3 hli txoj kab uas hla thiab 65 hli ntev,Qhov sib nqus coefficient thiab nqus coefficient ntawm 1064 nm tau ntsuas yog 0.0001 cm-1 thiab 0.0017 cm-1, raws li.Rau 808 nm sab-pumped laser sim, qhov nruab nrab tso zis hluav taws xob ntawm 44.9 W tau ua tiav nrog kev hloov kho qhov muag-rau-kho qhov muag ntawm 26.4%, uas yog ze li ntawm 1 ntawm.% ib qho siv lead ua.Kev siv 885 nm ncaj qha kawg-pumped scheme, cov kev ntsuam xyuas laser hauv qab no pom tau tias qhov kev ua haujlwm siab ntawm 62.5% thiab qhov tso zis ntau tshaj plaws ntawm 144.8 W tau txais ntawm absorbed twj fais fab ntawm 231.5 W. hauv Nd:YAG ceramic laser rau peb paub.Nws ua pov thawj tias lub zog siab thiab kev ua haujlwm siab laser tso zis tuaj yeem tsim los ntawm cov khoom siv kho qhov muag zoo Nd: YAG ceramic pas nrig nrog rau 885 nm ncaj qha siv tshuab.
Daim ntawv no nthuav tawm lub zog pulse siab, nqaim linewidth, nruab nrab-infrared (MIR) laserat 6.45 µm, raws li BaGa4Se7 (BGSe) siv lead ua optical parametric oscillator (OPO) pumped by1.064 µm laser.Qhov siab tshaj plaws pulse zog ntawm 6.45 µm yog mus txog 1.23 mJ, nrog lub mem tes dav ntawm 24.3 ns thiab rov ua dua tus nqi ntawm 10 Hz, sib haum mus rau qhov kev hloov kho qhov muag-optical efficiency ntawm 2.1%, los ntawm lub teeb lub teeb 1.064 µm mus rau idler lub teeb 6.45 µm.Lub idler lub teeb linewidth yog hais txog 6.8 nm.Meanwhile, peb raug xam qhov OPO theem-muab mob ntawm BGSe siv lead ua pumped los ntawm 1.064 µm laser, thiab ib tug lej simulation system tau ua los soj ntsuam cov input-outputcharacteristics ntawm 6.45 µm, nrog rau cov cov nyhuv ntawm crystal ntev ntawm kev hloov dua siab tshiab.Kev pom zoo zoo tau pom ntawm kev ntsuas thiab simulation.Rau qhov zoo tshaj plaws ntawm peb txoj kev paub, qhov no yog lub zog siab tshaj plaws ntawm 6.45 µm, nrog rau txoj kab nqaim tshaj plaws rau txhua lub xeev MIR ns laser hauv BGSe-OPO pumped los ntawm yooj yim 1.064 µm oscillator.Qhov no yooj yim thiab compact 6.45 µm OPO system, nrog siab mem tes zog thiab nqaim linewidth, tuaj yeem ua tau raws li qhov yuav tsum tau ua rau cov ntaub so ntswg txiav thiab txhim kho cov ntaub so ntswg ablation raug.
Nyob rau hauv daim ntawv no, peb ua qauv qhia ib tug langasite (LGS) electro-optic Ho: YAG kab noj hniav-tso laser uas suppresses qhov nce dependence ntawm mem tes ntev nyob rau hauv Q-hloov lasers.Lub sijhawm tas mus li ntawm cov mem tes ntawm 7.2 ns tau ua tiav ntawm qhov rov ua dua ntawm 100 kHz.Kev txais txiaj ntsig los ntawm LGS siv lead ua tsis muaj qhov cuam tshuam rov qab piezoelectric nplhaib thiab thermally induced depolarization, lub tsheb ciav hlau ruaj khov tau ua tiav ntawm qhov tso zis hluav taws xob ntawm 43 W. Thawj zaug, daim ntawv thov ntawm kab noj hniav-dum laser nyob rau hauv nruab nrab-infrared (mid- IR) ZnGeP2 (ZGP) kho qhov muag parametric oscillator (OPO) tau paub lawm, muab txoj hauv kev txhim khu kev qha kom ua tiav cov nqi rov ua haujlwm siab thiab luv nanosecond mem tes sij hawm rau high-power mid-infrared ZGP OPOs.Qhov nruab nrab qhov hluav taws xob tso zis yog 15 W, sib haum rau lub sijhawm mem tes ntawm 4.9 ns thiab qhov rov ua dua ntawm 100 kHz.
Peb ua qauv qhia thawj zaug ntawm tiam octave-spanning mid-infrared siv BGSe nonlinear siv lead ua.A Cr: ZnS laser system xa 28-fs pulses ntawm lub nruab nrab wavelength ntawm 2.4 µm yog siv los ua lub twj tso kua mis, uas tsav lub intra-pulse sib txawv zaus tsim nyob rau hauv lub BGSe siv lead ua.Raws li qhov tshwm sim, qhov sib xyaw ua ke broadband nruab nrab-infrared txuas ntxiv ntawm 6 txog 18 µm tau txais.Nws qhia tau hais tias BGSe siv lead ua yog cov khoom cog lus rau broadband, ob peb lub voj voog nruab nrab-infrared tiam ntawm zaus hloov pauv nrog femtosecond twj tso kua mis.
1.53 W tag nrho-solid-state nanosecond pulsed mid-infrared laser ntawm 6.45 µm
