ND:YVO4 (Neodymium-Doped Yttrium Orthovanadate)
Nd:YVO₄ is an excellent laser crystal for diode-pumped lasers, particularly low/medium power. Compared with Nd:YAG, it has higher pump absorption and a larger stimulated-emission cross section. Uses include machinery, materials processing, spectroscopy, wafer inspection, displays, medical testing, laser printing and data storage. The referenced comparison table covers Nd:YVO₄/Nd:YAG stimulated-emission cross section(σ), absorption coefficient(α), fluorescence lifetime(τ), absorption length(La), threshold power(Pth) and pump quantum efficiency(η).
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Overview
Specifications
| Parameter | Value |
|---|---|
| Atomic Density [Nd1.0%] | 1.26x10²⁰ atoms/cm³ (Nd1.0%) |
| Crystal Structure | Tetragonal, Space Group D₄ₕ-I4/amd, a=b=7.1193A, c=6.2892A |
| Density | 4.22g/cm³ |
| Mohs Hardness | 4-5 (Approximately Glass) |
| Thermal Expansion Coefficient [300K] | αₐ=4.43x10⁻⁶/K α_c=11.37x10⁻⁶/K |
| Thermal Conductivity [300K] | //C:0.0523W/cm/K ⊥C:0.0510W/cm/K |
| Emission Wavelength | 1064nm,1342nm |
| Thermo-optic Coefficient [300K] | dnₒ/dT=8.5×10⁻⁶/K dnₑ/dT=2.9×10⁻⁶/K |
| Fluorescence Lifetime [1%] | 90μs(1%) |
| Absorption Coefficient [810nm] | 31.4cm⁻¹ @810nm |
| Intrinsic Loss [1064nm] | 0.02cm⁻¹ @1064nm |
| Gain Bandwidth [1064nm] | 0.96nm@1064nm |
| Polarized Laser Radiation | π Polarization; Parallel to Optical Axis (C Axis) |
| Diode-Pumped Optical-to-Optical Efficiency | >60% |
| Quality Assurance Specifications - Wavefront Distortion [633nm] | <λ/4 @ 633nm |
| Quality Assurance Specifications - Dimensional Tolerance | (W±0.1mm) x (H±0.1mm) x (L+0.2mm/-0.1) |
| Quality Assurance Specifications - Clear Aperture Dimension | >90% |
| Quality Assurance Specifications - Flatness [633 nm] | λ/8 @633 nm, λ/4 @633nm (Thickness Less Than 2mm) |
| Quality Assurance Specifications - Surface Finish | 10/5 |
| Quality Assurance Specifications - Parallelism | >20 arc seconds |
| Quality Assurance Specifications - Perpendicularity | 5 arc minutes |
| Quality Assurance Specifications - Angular Tolerance | <±0.5° |
| Quality Assurance Specifications - Antireflection Coating | 1064nm R<0.2%; HR1064nm R>99.8%, 808nm T>95% |
Key Features
Datasheet
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Supplier Information
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