YVO4 (Yttrium orthovanadate) Crystal yog ib qho khoom siv zoo heev ntawm qhov muag, nws muaj ntau txoj kev dav thiab ntau lub tsho loj ntawm qhov pom thiab qhov ze ntawm sab hauv. Cov khoom zoo ua kom loj me me YVO4 Laser siv lead ua sai sai ua ib yam tshiab ntawm cov khoom siv ntawm ibefringence, uas tau dav siv nyob rau hauv kev lag luam photovoltaic.
Nd: YVO4 (Neodymium-doped Yttrium Vanadate) muaj cov pa hluav taws xob loj loj hauv cov laser wavelengths, kev nqhis dej siab ntawm kev siv lub wavelengths, qhov siab tshaj plaws ntawm lub laser teeb meem, thiab cov khoom vaj khoom tsev zoo, lub cev thiab kho qhov muag. Tam sim no Nd: Yvo4 lasers tau siv rau hauv tshuab, cov khoom siv, spectroscopy, wafer soj ntsuam, zaub, kev tshuaj ntsuam, laser printing, cov ntaub ntawv cia, thiab lwm yam hauj lwm. Honour Optics yuav muab cov khoom siv YVO4 laser lag luam wholesale.
High purity YVO4 laser siv lead ua tau zoo mechanical thiab lub cev zoo thiab yog ib qho zoo tshaj plaws ntawm cov khoom muag qhov muag polarization vim nws txoj kev dav dav dav thiab ntau tus nqi siab. YVO4 yog ib qho siv lead ua uniaxial uas loj hlob raws li txoj cai ntawm Czochralski. Nws muaj kev ruaj ntseg kub-txias, lub cev nqaij daim tawv, thiab cov khoom siv dag zog. Nyob rau hauv ntau daim ntawv sau npe, nrog rau cov cais tawm ntawm fiber ntau, loops, interlacing, harnesses, thiab lwm yam khoom siv lub teeb taws, nws yog ib qho khoom zoo heev rau cov calcite thiab rutile crystals.
Kev nqhis dej ntau dhau ntawm lub thoob ntim kabmob, qhov yuav luag txog li tsib zaug loj dua kev siv ntau dua li ntawm 808 nm piv nrog Nd: YAG Crystal; Loj loj tshaj tawm kev ua pa tawm-raws seem loj li plaub npaug ntawm lub lasing wavelength ntawm 1064nm. Txo qhov chaw qis dua thiab kev ua haujlwm siab dua; Raws li ib qho siv lead ua uniaxial nrog ib tus loj birefringence, lub emission tsuas yog linearly polarized.
| Atomic Density | 1.26x1020 atoms/cm3 (Nd doping:1.0%) |
| Crystal Structure | Tetragonal, space group I41/amd a=b=7.1193, c=6.2892 |
| Density | 4.22g/cm3 |
| Melting Temperature | 1825 of |
| Mohs Hardness | 4-5 |
| Specific Heat @25oC | 24.6 (cal/mol/K) |
| Thermal Expansion Coefficients (@300K) | αa=4.43x10-6/K αc=11.37x10-6/K |
| Thermal Conductivity Coefficients(@300K) | //C: 5.23W/m/K ⊥C: 5.10W/m/K |
| Lasing Wavelength | 1064.3nm, 1342nm |
| Thermo-optical Coefficient (@300K) | dno/dT=8.5x10-6/K dne/dT=2.9x10-6/K |
| Sellmeier Equations for Pure YVO4crystals ( λ in µm) | no2=3.77834+0.069736/(λ2-0.04724)-0.0108133λ2 ne2=4.59905+0.110534/(λ2-0.04813)-0.0122676λ2 |
| Refractive Index (@1064nm) | no=1.958, ne=2.168 |
| Stimulated Emission Cross- section |
25x10-19cm2 @1064nm |
| Fluorescent Lifetime | 95 µs |
| Peak absorption wavelength | 808 nm |
| Absorption Coefficient (1% Nd) | 22.8cm-1 (E//c), 11.1cm-1 (E//a) @ 808nm |
| Intrinsic Loss | 0.02cm-1 @ 1064nm |
| Gain Bandwidth | 0.96nm @ 1064nm |
| Polarized Laser Emission | Parallel to the optic axis (c-axis) |
Loj tus haum coefficient, qhov no yog qhov tseem ceeb tshaj plaws ntawm Nd: YVO4 Crystal. Nws muaj 5 lub sij hawm loj txaus coefficient hauv ib lub dav hlau nqus ntawm qhov 808 nm peak twj wavelength piv nrog Nd: YAG Crystal, uas cia li ntais ntawv tus qauv ntawm lub hwj chim siv hluav taws xob tam sim no. Qhov no txhais tau tias txawm tias tus me me Nd: YVO4 Crystal yuav siv los tsim kom muaj ntau lub lens system.
Rau qhov tso zis muaj zog, qhov no kuj txhais tau hais tias qis zog ntawm qhov laser diode ua haujlwm, yog li txuas ntxiv lub neej ntawm lub laser diode. Lub dav nraud bandwidth ntawm high-quality YVO4 laser siv lead ua uas yuav ncav cuag 2 mus rau 6 zaus ntawm Nd: YAG. Dhau li ntawm kev siv ntau dua, Nd: YVO4 kuj txhais tau tias muaj ntau yam kev xaiv ntawm diode specifications. Qhov no yuav pab tau rau cov neeg ua haujlwm laser rau kev siab ntev thiab txo tus nqi xaiv.
Loj stimulated emission, qhov no yog lwm yam txaus nyiam ua cim ntawm Nd: YVO4 Crystal. Nws muaj zog loj tshaj huab cua ntawm ob qho tib si 1064nm thiab 1342nm. Thaum siv qhov qaub ncaug Nd: YVO4 Crystal lasing ntawm 1064nm, nws yog kwv yees li 4 npaug tshaj Nd: YAG Crystal, thiab yuav luag txog 18 lub sij hawm siab tshaj Nd: YAG ntawm 1340nm, uas ua rau CW khiav hauj lwm ua tiav ntawm Nd: YAG ntawm 1320nm. Cov no ua rau Nd: YVO4 laser yog ib qho yooj yim kom muaj ib txoj kab ib qho pa tawm ntawm ob lub tsho ntev.
Loj birefringence tseem yog ib qho tseem ceeb ntawm Nd: YVO4 Crystal, vim tias nws yog ib qho uniaxial es tsis yog ib qho kev ua yeeb yam ntawm cubic li Nd: YAG, dab tsi nws emits yog tsuas yog ib tug linearly polarized, yog li tsis txhob undesired birefringent teebmeem ntawm kev hloov tawm zaus. Txawm hais tias lub neej ntawm Nd: YVO4 yog li 2.7 npaug tshaj li ntawm Nd: YAG, nws qhov kev qhia tau qis qis kuj tseem siab heev rau ib tus qauv tsim ntawm laser kab noj hniav, vim nws siab twj quantum efficiency.
σ (stimulated emission cross-sections), α (Coefficient Absorption), τ (Fluorescent lub neej), La (Absorption Length), Pth (Harbor Power) thiab Cov Khoom (Pump Quantum Efficiency).
| Laser crystal | Doping (atm%) |
σ (x10-19cm2) |
α (cm-1) |
τ (µs) |
Pth (mW) |
Effi. (%) |
| Nd: YVO4 (a-cut) |
1.0 2.0 |
25 25 |
23 46 |
90 50 |
30 78 |
52 48.6 |
| Nd: YVO4 (c-cut) |
1.1 | 7 | 9.2 | 90 | 231 | 45.5 |
| Nd:YAG | 0.85 | 6 | 7.1 | 230 | 115 | 38.6 |
| Crystals | Size (mm3) | Pump Power | Output (@ 1064nm) |
| Nd:YVO4 | 3x3x1 | 850mW | 350mW |
| Nd:YVO4 | 3x3x5 | 15W | 6W |
| Nd:YAG | 3x3x2 | 850mW | 34mW |
Doping concentration ntawm 0.15 rau 3.0mol%
Ntsig ntawm 2 hli mus rau 30mm, ntev ntawm 0.02mm txog 30mm
Kev Taw Qhia Kev Taw Qhia: 5 arc feeb
Dopant Concentration Tolerance ----------------------- 0.1%
Kev Tshaj Tawm --------------------------------- < 10 arc vib nas this
Perpendicularity -------------------------- < 5 arc feeb
Chamfer --------------------------------- --- 0.1 hli @ 45 °
Cov Lus Aperture ----------------------------- 95%
Nto Zoo ---------------------------- 10/5 los sis zoo dua
Nto Caij Ntaus --------------------------- L /10 los sis zoo dua
Wavefront Distortion -------------------------- λ /10 @ 633nm
Loj loj YVO4 Laser Crystal yog dav siv nyob rau hauv kev sib txuas ntawm fiber ntau qhov sib txuas lus thiab yog cov ntaub ntawv tseem ceeb hauv kev siv xws li cov twj tso khoom muag optical, circulators, interleavers, beam displacers, thiab polarizer.
High purity YVO4 laser siv lead ua rau diode siv zog siv rau diode siv ntawm cov khoom lag luam laser tam sim no vim nws qhov siab nce, qis qis thiab siab nqus coefficients ntawm kev siv cov wavelengths, uas yog los ntawm txoj kev haum zoo ntawm neodymium dopant nyob rau hauv cov kwj kab siv lead ua. Qhov no yog rau high precision YVO4 laser absorption thiab emission feature surpassing Nd: YAG Pumped los ntawm laser diodes. Nd: YVO4 Crystal tau raug siv nrog cov NLO coefficient Crystals (LBO, BBO los yog KTP) rau zaus-hloov cov zis tawm ntawm qhov ze sab hauv ntsuab, xiav, los yog UV.
Honour yuav muab rau koj nrog YVO4 muaju uas kuj tuaj yeem siv nrog Nd. Raws li ib qho zoo thiab pheej yig khoom nce nruab nrab, nws yog dav siv laser cwj mem, handheld ntaus ntawv, thiab lwm yam khoom siv rau khoom laser me me.
| Doping | Dimension | Coating |
| 2% | 3x3x1mm | HR/AR Coating |
| 2% | 3x3x1mm | AR/AR Coating |
| 1% | 3x3x1mm | HR/AR Coating |
| 1% | 3x3x5mm | AR/AR Coating |
| 0.50% | 3x3x10mm | AR/AR Coating |
| 0.27% | 4x4x8mm | AR/AR Coating |
YVO4 laser siv lead ua chaw, muag zoo siab YVO4 laser siv lead ua, txais tos rau kev lag luam wholesale YVO4 laser Crystal pom nqe.