Nd:YVO4
Density:4.22 g/cm2; melting point:1810 ±25℃; orientation:a-cut crystalline direction (+/-5℃); wavefront distortion:<λ/8 at 633nm; surface quality:better than20/10 Scratch/Dig; parallelism:<10 arc seconds; perpendicularity:<5 arc minutes; flatness:<λ/10 at 632.8nm; bevel:0.15x45o. Neodymium-doped yttrium vanadate (Nd:YVO4). Nd:YVO4 is an excellent crystal for diode-pumped lasers, especially low-to-medium power. Compared with Nd:YAG, Nd:YVO4 offers higher pump absorption and a larger stimulated-emission cross-section. Diode-pumped Nd:YVO4 combined with LBO, BBO, or KTP provides efficient frequency doubling for NIR, green, blue, and UV all-solid-state sources. Nd:YVO4 lasers serve machinery, materials processing, spectroscopy, wafer inspection, displays, medical testing, laser printing, and storage. Nd:YVO4 diode-pumped systems are replacing water-cooled ion and lamp-pumped lasers, especially for compactness and single-longitudinal-mode output. Basic properties Crystal Structure | Tetragonal Lattice ConstantsÅ | a = b = 7.12, c= 6.29 Density g/cm3 | 4.22 Mohs Hardness | 8 - 9 Melting Point , °C | 2105 Refractive Index | at 1064 nm | no=1.9573; ne=2.1652 at 808 nm | no=1.9721; ne=2.1858 at 532 nm | no=2.0210; ne=2.2560 Thermal Expansion Coefficient | αc= 11.37 x 10-6x °K-1 Thermal Shock Resistance @25°C, W / m-1x °K-1, c-axis | 5.10 Emission Wavelength nm | 914, 1064, 1342 Nd:YVO4 vs Nd:YAG Laser Properties Comparison Laser Crystal | Dopant Concentration(atm%) | s (x10-19cm2) | a (cm-1) Nd:YVO4(a-cut) | 1.0 | 25 | 31.2 Nd:YVO4(a-cut) | 2.0 | 25 | 72.4 Nd:YVO4(c-cut) | 1.1 | 7 | 9.2 Nd:YAG | 0.85 | 6 | 7.1
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Overview
Specifications
| Parameter | Value |
|---|---|
| Dopant Concentration | 0.1─ 4.0 atm % |
| Diameter r | 1.5─ 25.0 |
| Length | 0.5─30.0 |
| Dimensional Tolerance - Diameter | ± 0.5mm |
| Dimensional Tolerance - Length | ± 0.5mm |
| Parallelism | ≤10 " |
| Perpendicularity | ≤5 ' |
| Surface Finish [MIL-O-13830A] | 10/5 Scratch / Digper MIL-O-13830A |
| Flatness [632.8nm] | <λ/10 @ 632.8 nm |
| Anti-Reflection Coating System | According to Customer Requirements |
Key Features
Datasheet
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