Yttrium Orthovanadate (YVO4) Crystals
- High Birefringence: Superior optical anisotropy with large birefringence (Δn ≈ 0.2 at 1 μm).
- Wide Transparency Range: Transmission from 400 nm to 5 μm.
- High Optical Damage Threshold: Suitable for high-power laser applications.
- Good Mechanical and Chemical Stability: Resistant to thermal and chemical degradation.
- Easy Fabrication: Can be cut and polished with high precision.
- Excellent Thermal Conductivity: Enhances performance in high-power optical devices.
- High Refractive Index: Important for minimizing device size while maintaining performance.
- Nonlinear Optical Properties: Suitable for frequency conversion (second harmonic generation, etc.) when properly doped.
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Description
Yttrium Orthovanadate (YVO₄) crystals are highly birefringent, optically anisotropic crystals widely used in optical and laser applications. Thanks to their excellent transparency from the visible to infrared range, high damage threshold, large birefringence, and chemical stability, YVO₄ crystals have become the preferred material for polarizing optics, isolators, circulators, beam displacers, and various laser components. They are also an excellent host material when doped with rare earth ions (e.g., Nd:YVO₄, Yb:YVO₄) for solid-state lasers.
Key Features and Properties:
- High Birefringence: Superior optical anisotropy with large birefringence (Δn ≈ 0.2 at 1 μm).
- Wide Transparency Range: Transmission from 400 nm to 5 μm.
- High Optical Damage Threshold: Suitable for high-power laser applications.
- Good Mechanical and Chemical Stability: Resistant to thermal and chemical degradation.
- Easy Fabrication: Can be cut and polished with high precision.
- Excellent Thermal Conductivity: Enhances performance in high-power optical devices.
- High Refractive Index: Important for minimizing device size while maintaining performance.
- Nonlinear Optical Properties: Suitable for frequency conversion (second harmonic generation, etc.) when properly doped.
Typical Applications:
- Polarizing optics (polarizers, beam splitters)
- Optical isolators and circulators
- Beam displacers
- Passive Q-switches
- Frequency doubling and nonlinear optics
- Host material for doped solid-state lasers (e.g., Nd:YVO₄, Yb:YVO₄)
- Optical modulators
- High-precision instrumentation
Specifications:
| Chemical Formula | YVO₄ |
| Crystal Structure | Tetragonal, zircon-type |
| Space Group | I41/amd |
| Lattice Constants | a = 7.119 Å, c = 6.289 Å |
| Density | ~4.22 g/cm³ |
| Melting Point | ~1810°C |
| Hardness (Mohs) | 5 |
| Transparency Range | 400 nm – 5 μm |
| Birefringence (Δn) | ~0.21 |
| Refractive Index (at 633 nm) | nₒ ≈ 1.944, nₑ ≈ 2.155 |
| Thermal Expansion Coefficient | αₐ ≈ 4.43×10⁻⁶/K, α𝚌 ≈ 11.37×10⁻⁶/K |
| Optical Damage Threshold | ~15 GW/cm² (at 1064 nm pulsed) |
| Surface Quality | 10/5 – 20/10 (MIL-PRF-13830B) |
| Orientation Options | [001], [100], [110] |
| Available Sizes | 2×2×5 mm³, 3×3×10 mm³, 5×5×20 mm³, custom |
| Surface Finishing | Polished / As-Cut |
| Coating Options | AR Coated or Uncoated |
Material Properties and Crystal Structure:
- Chemical Formula: YVO₄
- Crystal Structure: Tetragonal, zircon-type structure
- Space Group: I41/amd
- Lattice Constants: a = 7.119 Å, c = 6.289 Å
- Density: ~4.22 g/cm³
- Melting Point: ~1810°C
- Mohs Hardness: 5
- Refractive Indices: nₒ ≈ 1.944, nₑ ≈ 2.155 at 633 nm
- Birefringence (Δn): ~0.21
- Thermal Expansion Coefficients: αₐ ≈ 4.43 × 10⁻⁶/K, α𝚌 ≈ 11.37 × 10⁻⁶/K
- Transparency Range: 400 nm – 5 μm
- Optical Damage Threshold: ~15 GW/cm² at 1064 nm for pulsed lasers
Standard Product Sizes and Availability:
- Standard dimensions: 2×2×5 mm³, 3×3×10 mm³, 5×5×20 mm³ (customizable)
- Orientation: [001], [100], [110] available upon request
- Surface Finishing: Polished or as-cut
- Surface Quality: 10/5 to 20/10 Scratch/Dig (MIL-PRF-13830B standard)
- Parallelism: <10 arc seconds
- Flatness: <λ/8 @ 632.8 nm
- Coatings: AR coatings, custom coatings for specific wavelengths
- Laser grade and optical grade available
Customization Options:
- Special crystal orientations (e.g., [110] for specific optical isolator designs)
- Custom sizes and thicknesses
- Anti-Reflective (AR) coatings for 532 nm, 808 nm, 1064 nm, and other specific wavelengths
- Optical contacting or cementing available for multi-crystal assemblies
- Ultra-high precision polishing and surface flatness
- Doping with rare-earth ions like Nd³⁺, Yb³⁺ for laser host applications
Packaging and Delivery:
- Packaged in clean, anti-static, Class 100 cleanroom conditions
- Protective custom carriers to prevent damage during shipping
- Vacuum-packed with moisture-proof materials
- Lead Time: 2–4 weeks for standard sizes; 4–6 weeks for custom orders
- Full documentation: Optical inspection report, orientation verification, and coating reports provided upon request
Why Choose Our Yttrium Orthovanadate (YVO4) Crystals?
- High-purity raw material sourcing ensuring superior optical performance
- Strict quality control and advanced crystal growth technologies
- Custom fabrication capabilities from single pieces to mass production
- Competitive pricing and global shipping
- Experienced technical support for custom optical designs and applications
- ISO 9001-certified manufacturing process
Ordering & Contact Information:
We offer flexible MOQ (Minimum Order Quantity), competitive pricing and global shipping. For custom orders or technical inquiries, please contact us for a detailed consultation!
