Nd YAG
Invented nyob rau hauv lub sixties ntawm lub xyoo pua xeem, Nd:YAG tau thiab txuas ntxiv mus yog cov feem ntau siv laser siv lead ua rau solid-state crystal khoom.Nws cov laser tsis yog ib qho kev cuam tshuam zoo ntawm qhov zoo thiab qhov tsis muaj zog ntawm nws cov kev sib tw.Nd: YAG crystals yog siv nyob rau hauv tag nrho cov hom ntawm solid-state lasers.Piv nrog rau lwm cov laser siv lead ua, nws lub neej fluorescence yog ob zaug ntau dua Nd: YVO4, thiab thermal conductivity kuj zoo dua.
Nta thiab Daim Ntawv Thov
★ Tsawg poob ntawm 1064 nm, Zoo Optical Zoo, Zoo Mechanical thiab Thermal Properties
★ Kev nce qib siab, qis pib, ua haujlwm siab
★ Vim lub cubic symmetry thiab zoo, Nd:YAG yog ib qho yooj yim rau kev khiav lag luam nrog TEM00 hom
★ Tsim xiav laser nrog lub zaus-ob npaug ntawm 946nm
★ Ua Q-hloov nrog Cr:YAG ncaj qha
★ Ua haujlwm nyob rau hauv lub zog siab heev laser mus txog qib KW
Lub cev muaj zog
| Tshuaj Formula | Nd: Y3Al5O12 |
| Crystal Structure | Kub |
| Lattice Constants | 12.01 Nws |
| Nco ntsoov | ~ 1.2 x 1020 cm-3 |
| Melting Point | 1970 ℃ |
| Qhov ntom | 4.56 g / cm3 |
| Mohs Hardness | 8.5 |
| Refractive Index | 1.82 ib |
| Thermal conductivity | 14 W / m / K @ 20 ℃, 10.5 W / m / K @ 100 ℃ |
| Thermal Expansion Coefficient | 7.8 x 10-6 / K [111], 0-250 ℃ |
Optical Properties
| Pump Wavelength | 8 07,5nm |
| Lasing Wavelengths | 1064nm ua |
| Photon Zog | 1.86x10-19J @ 1064nm |
| Stimulated Emission Hla-Section | 2,8 x 10-19 cm2 |
| Radiative Lub Neej | 550 mus |
| Fluorescence tshwm sim | 230 mus |
| Loss Coefficient | 0.003cm-1 @ 1064nm |
| Absorption Band ntawm Pump Wavelength | 1nm ib |
| Linewidth | 0,6nm :ua |
| Polarized Emission | Tsis muaj polarized |
| Thermal Birefringence | Siab |
Ntsiab Specifications
| Tsis muaj | Ntau yam lossis Tolerances |
| Nd Dopant Level | 0.5 - 1.1 ntawm m% |
| Kev taw qhia | <111> crystalline kev taw qhia (± 0.5 deg) |
| Dimension Tolerances | Txoj kab uas hla: ± 0.05mm |
| Ntev: ± 0.5mm | |
| Surface Quality (Scratch - Dig) | 10 - 5 |
| Clear Aperture | > 90% |
| Nto Flatness | < λ/10 @ 633 nm |
| Wavefront yuam kev | <λ/8 @ 633 nm |
| Parallelism | <10 arcsec |
| Perpendicularity | <5 arcmin |
| Chamfer | <0.1 hli x 45° |
| AR Txheej | R <0.25% @ 1064 nm ib qhov chaw Kev puas tsuaj pib dua 750 MW / cm2 @ 1064nm, 10 ns thiab 10 Hz |
| HR Txheej | Txheem R> 99.8% @ 1064nm, R <5% @ 808nm Lwm cov coatings muaj nyob rau ntawm koj qhov kev thov |
Peb kuj muab cov grooved Nd: YAG laser rods, uas tuaj yeem txhim kho cov nqaj zoo, txo cov nyhuv thermal, thiab txhim kho kev ua haujlwm ntawm grooved pas nrig los ntawm 10-20%.
Yog xav paub ntxiv txog lwm hom siv lead ua xws li Nonlinear Crystal [BBO (Beta-BaB2O4), Potassium Titanium Oxide Phosphate (KTiOPO4 lossis KTP)], Passive Q-Hloov Crystal [Cr: YAG (Cr4+: Y3Al5O12)], EO Crystal [ Lithium Niobate (LiNbO3), BBO siv lead ua], Birefringent Crystal [Yttrium Orthovanadate (YVO4), Calcite, Lithium Niobate (LiNbO3), Kub Kub Daim Ntawv BBO (α-BaB2O4), Tib Synthetic Crystal Quartz, Magnesium Fluoride (MgF2)] lossis tau txais ib nqe lus, thov koj xav tiv tauj peb.
